From 522201f34bc348f62db044f7ef847fc326b08539 Mon Sep 17 00:00:00 2001 From: zhoufan Date: Thu, 29 Apr 2021 15:57:10 +0800 Subject: [PATCH] =?UTF-8?q?=E6=94=AF=E6=8C=81=E8=B7=A8=E5=B9=B3=E5=8F=B0?= =?UTF-8?q?=E6=89=A7=E8=A1=8C?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- action.yml | 2 +- dist/index.js | 26591 ++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 26592 insertions(+), 1 deletion(-) create mode 100644 dist/index.js diff --git a/action.yml b/action.yml index dd6a79c..dff9500 100644 --- a/action.yml +++ b/action.yml @@ -13,4 +13,4 @@ inputs: runs: using: 'node12' - main: 'entrypoint.js' + main: 'dist/index.js' diff --git a/dist/index.js b/dist/index.js new file mode 100644 index 0000000..9e6e15c --- /dev/null +++ b/dist/index.js @@ -0,0 +1,26591 @@ +module.exports = +/******/ (function(modules, runtime) { // webpackBootstrap +/******/ "use strict"; +/******/ // The module cache +/******/ var installedModules = {}; +/******/ +/******/ // The require function +/******/ function __webpack_require__(moduleId) { +/******/ +/******/ // Check if module is in cache +/******/ if(installedModules[moduleId]) { +/******/ return installedModules[moduleId].exports; +/******/ } +/******/ // Create a new module (and put it into the cache) +/******/ var module = installedModules[moduleId] = { +/******/ i: moduleId, +/******/ l: false, +/******/ exports: {} +/******/ }; +/******/ +/******/ // Execute the module function +/******/ var threw = true; +/******/ try { +/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__); +/******/ threw = false; +/******/ } finally { +/******/ if(threw) delete installedModules[moduleId]; +/******/ } +/******/ +/******/ // Flag the module as loaded +/******/ module.l = true; +/******/ +/******/ // Return the exports of the module +/******/ return module.exports; +/******/ } +/******/ +/******/ +/******/ // expose the module cache +/******/ __webpack_require__.c = installedModules; +/******/ __webpack_require__.ab = __dirname + "/"; +/******/ +/******/ // the startup function +/******/ function startup() { +/******/ // Load entry module and return exports +/******/ return __webpack_require__(__webpack_require__.s = 462); +/******/ }; +/******/ // initialize runtime +/******/ runtime(__webpack_require__); +/******/ +/******/ // run startup +/******/ return startup(); +/******/ }) +/************************************************************************/ +/******/ ({ + +/***/ 5: +/***/ (function(module, __unusedexports, __webpack_require__) { + +const { dirname, resolve } = __webpack_require__(277); +const { readdirSync, statSync } = __webpack_require__(747); + +module.exports = function (start, callback) { + let dir = resolve('.', start); + let tmp, stats = statSync(dir); + + if (!stats.isDirectory()) { + dir = dirname(dir); + } + + while (true) { + tmp = callback(dir, readdirSync(dir)); + if (tmp) return resolve(dir, tmp); + dir = dirname(tmp = dir); + if (tmp === dir) break; + } +} + + +/***/ }), + +/***/ 24: +/***/ (function(module, __unusedexports, __webpack_require__) { + +"use strict"; + + +var utils = __webpack_require__(318); + +module.exports = function normalizeHeaderName(headers, normalizedName) { + utils.forEach(headers, function processHeader(value, name) { + if (name !== normalizedName && name.toUpperCase() === normalizedName.toUpperCase()) { + headers[normalizedName] = value; + delete headers[name]; + } + }); +}; + + +/***/ }), + +/***/ 29: +/***/ (function(module, __unusedexports, __webpack_require__) { + +/* MIT license */ +/* eslint-disable no-mixed-operators */ +const cssKeywords = __webpack_require__(710); + +// NOTE: conversions should only return primitive values (i.e. arrays, or +// values that give correct `typeof` results). +// do not use box values types (i.e. Number(), String(), etc.) + +const reverseKeywords = {}; +for (const key of Object.keys(cssKeywords)) { + reverseKeywords[cssKeywords[key]] = key; +} + +const convert = { + rgb: {channels: 3, labels: 'rgb'}, + hsl: {channels: 3, labels: 'hsl'}, + hsv: {channels: 3, labels: 'hsv'}, + hwb: {channels: 3, labels: 'hwb'}, + cmyk: {channels: 4, labels: 'cmyk'}, + xyz: {channels: 3, labels: 'xyz'}, + lab: {channels: 3, labels: 'lab'}, + lch: {channels: 3, labels: 'lch'}, + hex: {channels: 1, labels: ['hex']}, + keyword: {channels: 1, labels: ['keyword']}, + ansi16: {channels: 1, labels: ['ansi16']}, + ansi256: {channels: 1, labels: ['ansi256']}, + hcg: {channels: 3, labels: ['h', 'c', 'g']}, + apple: {channels: 3, labels: ['r16', 'g16', 'b16']}, + gray: {channels: 1, labels: ['gray']} +}; + +module.exports = convert; + +// Hide .channels and .labels properties +for (const model of Object.keys(convert)) { + if (!('channels' in convert[model])) { + throw new Error('missing channels property: ' + model); + } + + if (!('labels' in convert[model])) { + throw new Error('missing channel labels property: ' + model); + } + + if (convert[model].labels.length !== convert[model].channels) { + throw new Error('channel and label counts mismatch: ' + model); + } + + const {channels, labels} = convert[model]; + delete convert[model].channels; + delete convert[model].labels; + Object.defineProperty(convert[model], 'channels', {value: channels}); + Object.defineProperty(convert[model], 'labels', {value: labels}); +} + +convert.rgb.hsl = function (rgb) { + const r = rgb[0] / 255; + const g = rgb[1] / 255; + const b = rgb[2] / 255; + const min = Math.min(r, g, b); + const max = Math.max(r, g, b); + const delta = max - min; + let h; + let s; + + if (max === min) { + h = 0; + } else if (r === max) { + h = (g - b) / delta; + } else if (g === max) { + h = 2 + (b - r) / delta; + } else if (b === max) { + h = 4 + (r - g) / delta; + } + + h = Math.min(h * 60, 360); + + if (h < 0) { + h += 360; + } + + const l = (min + max) / 2; + + if (max === min) { + s = 0; + } else if (l <= 0.5) { + s = delta / (max + min); + } else { + s = delta / (2 - max - min); + } + + return [h, s * 100, l * 100]; +}; + +convert.rgb.hsv = function (rgb) { + let rdif; + let gdif; + let bdif; + let h; + let s; + + const r = rgb[0] / 255; + const g = rgb[1] / 255; + const b = rgb[2] / 255; + const v = Math.max(r, g, b); + const diff = v - Math.min(r, g, b); + const diffc = function (c) { + return (v - c) / 6 / diff + 1 / 2; + }; + + if (diff === 0) { + h = 0; + s = 0; + } else { + s = diff / v; + rdif = diffc(r); + gdif = diffc(g); + bdif = diffc(b); + + if (r === v) { + h = bdif - gdif; + } else if (g === v) { + h = (1 / 3) + rdif - bdif; + } else if (b === v) { + h = (2 / 3) + gdif - rdif; + } + + if (h < 0) { + h += 1; + } else if (h > 1) { + h -= 1; + } + } + + return [ + h * 360, + s * 100, + v * 100 + ]; +}; + +convert.rgb.hwb = function (rgb) { + const r = rgb[0]; + const g = rgb[1]; + let b = rgb[2]; + const h = convert.rgb.hsl(rgb)[0]; + const w = 1 / 255 * Math.min(r, Math.min(g, b)); + + b = 1 - 1 / 255 * Math.max(r, Math.max(g, b)); + + return [h, w * 100, b * 100]; +}; + +convert.rgb.cmyk = function (rgb) { + const r = rgb[0] / 255; + const g = rgb[1] / 255; + const b = rgb[2] / 255; + + const k = Math.min(1 - r, 1 - g, 1 - b); + const c = (1 - r - k) / (1 - k) || 0; + const m = (1 - g - k) / (1 - k) || 0; + const y = (1 - b - k) / (1 - k) || 0; + + return [c * 100, m * 100, y * 100, k * 100]; +}; + +function comparativeDistance(x, y) { + /* + See https://en.m.wikipedia.org/wiki/Euclidean_distance#Squared_Euclidean_distance + */ + return ( + ((x[0] - y[0]) ** 2) + + ((x[1] - y[1]) ** 2) + + ((x[2] - y[2]) ** 2) + ); +} + +convert.rgb.keyword = function (rgb) { + const reversed = reverseKeywords[rgb]; + if (reversed) { + return reversed; + } + + let currentClosestDistance = Infinity; + let currentClosestKeyword; + + for (const keyword of Object.keys(cssKeywords)) { + const value = cssKeywords[keyword]; + + // Compute comparative distance + const distance = comparativeDistance(rgb, value); + + // Check if its less, if so set as closest + if (distance < currentClosestDistance) { + currentClosestDistance = distance; + currentClosestKeyword = keyword; + } + } + + return currentClosestKeyword; +}; + +convert.keyword.rgb = function (keyword) { + return cssKeywords[keyword]; +}; + +convert.rgb.xyz = function (rgb) { + let r = rgb[0] / 255; + let g = rgb[1] / 255; + let b = rgb[2] / 255; + + // Assume sRGB + r = r > 0.04045 ? (((r + 0.055) / 1.055) ** 2.4) : (r / 12.92); + g = g > 0.04045 ? (((g + 0.055) / 1.055) ** 2.4) : (g / 12.92); + b = b > 0.04045 ? (((b + 0.055) / 1.055) ** 2.4) : (b / 12.92); + + const x = (r * 0.4124) + (g * 0.3576) + (b * 0.1805); + const y = (r * 0.2126) + (g * 0.7152) + (b * 0.0722); + const z = (r * 0.0193) + (g * 0.1192) + (b * 0.9505); + + return [x * 100, y * 100, z * 100]; +}; + +convert.rgb.lab = function (rgb) { + const xyz = convert.rgb.xyz(rgb); + let x = xyz[0]; + let y = xyz[1]; + let z = xyz[2]; + + x /= 95.047; + y /= 100; + z /= 108.883; + + x = x > 0.008856 ? (x ** (1 / 3)) : (7.787 * x) + (16 / 116); + y = y > 0.008856 ? (y ** (1 / 3)) : (7.787 * y) + (16 / 116); + z = z > 0.008856 ? (z ** (1 / 3)) : (7.787 * z) + (16 / 116); + + const l = (116 * y) - 16; + const a = 500 * (x - y); + const b = 200 * (y - z); + + return [l, a, b]; +}; + +convert.hsl.rgb = function (hsl) { + const h = hsl[0] / 360; + const s = hsl[1] / 100; + const l = hsl[2] / 100; + let t2; + let t3; + let val; + + if (s === 0) { + val = l * 255; + return [val, val, val]; + } + + if (l < 0.5) { + t2 = l * (1 + s); + } else { + t2 = l + s - l * s; + } + + const t1 = 2 * l - t2; + + const rgb = [0, 0, 0]; + for (let i = 0; i < 3; i++) { + t3 = h + 1 / 3 * -(i - 1); + if (t3 < 0) { + t3++; + } + + if (t3 > 1) { + t3--; + } + + if (6 * t3 < 1) { + val = t1 + (t2 - t1) * 6 * t3; + } else if (2 * t3 < 1) { + val = t2; + } else if (3 * t3 < 2) { + val = t1 + (t2 - t1) * (2 / 3 - t3) * 6; + } else { + val = t1; + } + + rgb[i] = val * 255; + } + + return rgb; +}; + +convert.hsl.hsv = function (hsl) { + const h = hsl[0]; + let s = hsl[1] / 100; + let l = hsl[2] / 100; + let smin = s; + const lmin = Math.max(l, 0.01); + + l *= 2; + s *= (l <= 1) ? l : 2 - l; + smin *= lmin <= 1 ? lmin : 2 - lmin; + const v = (l + s) / 2; + const sv = l === 0 ? (2 * smin) / (lmin + smin) : (2 * s) / (l + s); + + return [h, sv * 100, v * 100]; +}; + +convert.hsv.rgb = function (hsv) { + const h = hsv[0] / 60; + const s = hsv[1] / 100; + let v = hsv[2] / 100; + const hi = Math.floor(h) % 6; + + const f = h - Math.floor(h); + const p = 255 * v * (1 - s); + const q = 255 * v * (1 - (s * f)); + const t = 255 * v * (1 - (s * (1 - f))); + v *= 255; + + switch (hi) { + case 0: + return [v, t, p]; + case 1: + return [q, v, p]; + case 2: + return [p, v, t]; + case 3: + return [p, q, v]; + case 4: + return [t, p, v]; + case 5: + return [v, p, q]; + } +}; + +convert.hsv.hsl = function (hsv) { + const h = hsv[0]; + const s = hsv[1] / 100; + const v = hsv[2] / 100; + const vmin = Math.max(v, 0.01); + let sl; + let l; + + l = (2 - s) * v; + const lmin = (2 - s) * vmin; + sl = s * vmin; + sl /= (lmin <= 1) ? lmin : 2 - lmin; + sl = sl || 0; + l /= 2; + + return [h, sl * 100, l * 100]; +}; + +// http://dev.w3.org/csswg/css-color/#hwb-to-rgb +convert.hwb.rgb = function (hwb) { + const h = hwb[0] / 360; + let wh = hwb[1] / 100; + let bl = hwb[2] / 100; + const ratio = wh + bl; + let f; + + // Wh + bl cant be > 1 + if (ratio > 1) { + wh /= ratio; + bl /= ratio; + } + + const i = Math.floor(6 * h); + const v = 1 - bl; + f = 6 * h - i; + + if ((i & 0x01) !== 0) { + f = 1 - f; + } + + const n = wh + f * (v - wh); // Linear interpolation + + let r; + let g; + let b; + /* eslint-disable max-statements-per-line,no-multi-spaces */ + switch (i) { + default: + case 6: + case 0: r = v; g = n; b = wh; break; + case 1: r = n; g = v; b = wh; break; + case 2: r = wh; g = v; b = n; break; + case 3: r = wh; g = n; b = v; break; + case 4: r = n; g = wh; b = v; break; + case 5: r = v; g = wh; b = n; break; + } + /* eslint-enable max-statements-per-line,no-multi-spaces */ + + return [r * 255, g * 255, b * 255]; +}; + +convert.cmyk.rgb = function (cmyk) { + const c = cmyk[0] / 100; + const m = cmyk[1] / 100; + const y = cmyk[2] / 100; + const k = cmyk[3] / 100; + + const r = 1 - Math.min(1, c * (1 - k) + k); + const g = 1 - Math.min(1, m * (1 - k) + k); + const b = 1 - Math.min(1, y * (1 - k) + k); + + return [r * 255, g * 255, b * 255]; +}; + +convert.xyz.rgb = function (xyz) { + const x = xyz[0] / 100; + const y = xyz[1] / 100; + const z = xyz[2] / 100; + let r; + let g; + let b; + + r = (x * 3.2406) + (y * -1.5372) + (z * -0.4986); + g = (x * -0.9689) + (y * 1.8758) + (z * 0.0415); + b = (x * 0.0557) + (y * -0.2040) + (z * 1.0570); + + // Assume sRGB + r = r > 0.0031308 + ? ((1.055 * (r ** (1.0 / 2.4))) - 0.055) + : r * 12.92; + + g = g > 0.0031308 + ? ((1.055 * (g ** (1.0 / 2.4))) - 0.055) + : g * 12.92; + + b = b > 0.0031308 + ? ((1.055 * (b ** (1.0 / 2.4))) - 0.055) + : b * 12.92; + + r = Math.min(Math.max(0, r), 1); + g = Math.min(Math.max(0, g), 1); + b = Math.min(Math.max(0, b), 1); + + return [r * 255, g * 255, b * 255]; +}; + +convert.xyz.lab = function (xyz) { + let x = xyz[0]; + let y = xyz[1]; + let z = xyz[2]; + + x /= 95.047; + y /= 100; + z /= 108.883; + + x = x > 0.008856 ? (x ** (1 / 3)) : (7.787 * x) + (16 / 116); + y = y > 0.008856 ? (y ** (1 / 3)) : (7.787 * y) + (16 / 116); + z = z > 0.008856 ? (z ** (1 / 3)) : (7.787 * z) + (16 / 116); + + const l = (116 * y) - 16; + const a = 500 * (x - y); + const b = 200 * (y - z); + + return [l, a, b]; +}; + +convert.lab.xyz = function (lab) { + const l = lab[0]; + const a = lab[1]; + const b = lab[2]; + let x; + let y; + let z; + + y = (l + 16) / 116; + x = a / 500 + y; + z = y - b / 200; + + const y2 = y ** 3; + const x2 = x ** 3; + const z2 = z ** 3; + y = y2 > 0.008856 ? y2 : (y - 16 / 116) / 7.787; + x = x2 > 0.008856 ? x2 : (x - 16 / 116) / 7.787; + z = z2 > 0.008856 ? z2 : (z - 16 / 116) / 7.787; + + x *= 95.047; + y *= 100; + z *= 108.883; + + return [x, y, z]; +}; + +convert.lab.lch = function (lab) { + const l = lab[0]; + const a = lab[1]; + const b = lab[2]; + let h; + + const hr = Math.atan2(b, a); + h = hr * 360 / 2 / Math.PI; + + if (h < 0) { + h += 360; + } + + const c = Math.sqrt(a * a + b * b); + + return [l, c, h]; +}; + +convert.lch.lab = function (lch) { + const l = lch[0]; + const c = lch[1]; + const h = lch[2]; + + const hr = h / 360 * 2 * Math.PI; + const a = c * Math.cos(hr); + const b = c * Math.sin(hr); + + return [l, a, b]; +}; + +convert.rgb.ansi16 = function (args, saturation = null) { + const [r, g, b] = args; + let value = saturation === null ? convert.rgb.hsv(args)[2] : saturation; // Hsv -> ansi16 optimization + + value = Math.round(value / 50); + + if (value === 0) { + return 30; + } + + let ansi = 30 + + ((Math.round(b / 255) << 2) + | (Math.round(g / 255) << 1) + | Math.round(r / 255)); + + if (value === 2) { + ansi += 60; + } + + return ansi; +}; + +convert.hsv.ansi16 = function (args) { + // Optimization here; we already know the value and don't need to get + // it converted for us. + return convert.rgb.ansi16(convert.hsv.rgb(args), args[2]); +}; + +convert.rgb.ansi256 = function (args) { + const r = args[0]; + const g = args[1]; + const b = args[2]; + + // We use the extended greyscale palette here, with the exception of + // black and white. normal palette only has 4 greyscale shades. + if (r === g && g === b) { + if (r < 8) { + return 16; + } + + if (r > 248) { + return 231; + } + + return Math.round(((r - 8) / 247) * 24) + 232; + } + + const ansi = 16 + + (36 * Math.round(r / 255 * 5)) + + (6 * Math.round(g / 255 * 5)) + + Math.round(b / 255 * 5); + + return ansi; +}; + +convert.ansi16.rgb = function (args) { + let color = args % 10; + + // Handle greyscale + if (color === 0 || color === 7) { + if (args > 50) { + color += 3.5; + } + + color = color / 10.5 * 255; + + return [color, color, color]; + } + + const mult = (~~(args > 50) + 1) * 0.5; + const r = ((color & 1) * mult) * 255; + const g = (((color >> 1) & 1) * mult) * 255; + const b = (((color >> 2) & 1) * mult) * 255; + + return [r, g, b]; +}; + +convert.ansi256.rgb = function (args) { + // Handle greyscale + if (args >= 232) { + const c = (args - 232) * 10 + 8; + return [c, c, c]; + } + + args -= 16; + + let rem; + const r = Math.floor(args / 36) / 5 * 255; + const g = Math.floor((rem = args % 36) / 6) / 5 * 255; + const b = (rem % 6) / 5 * 255; + + return [r, g, b]; +}; + +convert.rgb.hex = function (args) { + const integer = ((Math.round(args[0]) & 0xFF) << 16) + + ((Math.round(args[1]) & 0xFF) << 8) + + (Math.round(args[2]) & 0xFF); + + const string = integer.toString(16).toUpperCase(); + return '000000'.substring(string.length) + string; +}; + +convert.hex.rgb = function (args) { + const match = args.toString(16).match(/[a-f0-9]{6}|[a-f0-9]{3}/i); + if (!match) { + return [0, 0, 0]; + } + + let colorString = match[0]; + + if (match[0].length === 3) { + colorString = colorString.split('').map(char => { + return char + char; + }).join(''); + } + + const integer = parseInt(colorString, 16); + const r = (integer >> 16) & 0xFF; + const g = (integer >> 8) & 0xFF; + const b = integer & 0xFF; + + return [r, g, b]; +}; + +convert.rgb.hcg = function (rgb) { + const r = rgb[0] / 255; + const g = rgb[1] / 255; + const b = rgb[2] / 255; + const max = Math.max(Math.max(r, g), b); + const min = Math.min(Math.min(r, g), b); + const chroma = (max - min); + let grayscale; + let hue; + + if (chroma < 1) { + grayscale = min / (1 - chroma); + } else { + grayscale = 0; + } + + if (chroma <= 0) { + hue = 0; + } else + if (max === r) { + hue = ((g - b) / chroma) % 6; + } else + if (max === g) { + hue = 2 + (b - r) / chroma; + } else { + hue = 4 + (r - g) / chroma; + } + + hue /= 6; + hue %= 1; + + return [hue * 360, chroma * 100, grayscale * 100]; +}; + +convert.hsl.hcg = function (hsl) { + const s = hsl[1] / 100; + const l = hsl[2] / 100; + + const c = l < 0.5 ? (2.0 * s * l) : (2.0 * s * (1.0 - l)); + + let f = 0; + if (c < 1.0) { + f = (l - 0.5 * c) / (1.0 - c); + } + + return [hsl[0], c * 100, f * 100]; +}; + +convert.hsv.hcg = function (hsv) { + const s = hsv[1] / 100; + const v = hsv[2] / 100; + + const c = s * v; + let f = 0; + + if (c < 1.0) { + f = (v - c) / (1 - c); + } + + return [hsv[0], c * 100, f * 100]; +}; + +convert.hcg.rgb = function (hcg) { + const h = hcg[0] / 360; + const c = hcg[1] / 100; + const g = hcg[2] / 100; + + if (c === 0.0) { + return [g * 255, g * 255, g * 255]; + } + + const pure = [0, 0, 0]; + const hi = (h % 1) * 6; + const v = hi % 1; + const w = 1 - v; + let mg = 0; + + /* eslint-disable max-statements-per-line */ + switch (Math.floor(hi)) { + case 0: + pure[0] = 1; pure[1] = v; pure[2] = 0; break; + case 1: + pure[0] = w; pure[1] = 1; pure[2] = 0; break; + case 2: + pure[0] = 0; pure[1] = 1; pure[2] = v; break; + case 3: + pure[0] = 0; pure[1] = w; pure[2] = 1; break; + case 4: + pure[0] = v; pure[1] = 0; pure[2] = 1; break; + default: + pure[0] = 1; pure[1] = 0; pure[2] = w; + } + /* eslint-enable max-statements-per-line */ + + mg = (1.0 - c) * g; + + return [ + (c * pure[0] + mg) * 255, + (c * pure[1] + mg) * 255, + (c * pure[2] + mg) * 255 + ]; +}; + +convert.hcg.hsv = function (hcg) { + const c = hcg[1] / 100; + const g = hcg[2] / 100; + + const v = c + g * (1.0 - c); + let f = 0; + + if (v > 0.0) { + f = c / v; + } + + return [hcg[0], f * 100, v * 100]; +}; + +convert.hcg.hsl = function (hcg) { + const c = hcg[1] / 100; + const g = hcg[2] / 100; + + const l = g * (1.0 - c) + 0.5 * c; + let s = 0; + + if (l > 0.0 && l < 0.5) { + s = c / (2 * l); + } else + if (l >= 0.5 && l < 1.0) { + s = c / (2 * (1 - l)); + } + + return [hcg[0], s * 100, l * 100]; +}; + +convert.hcg.hwb = function (hcg) { + const c = hcg[1] / 100; + const g = hcg[2] / 100; + const v = c + g * (1.0 - c); + return [hcg[0], (v - c) * 100, (1 - v) * 100]; +}; + +convert.hwb.hcg = function (hwb) { + const w = hwb[1] / 100; + const b = hwb[2] / 100; + const v = 1 - b; + const c = v - w; + let g = 0; + + if (c < 1) { + g = (v - c) / (1 - c); + } + + return [hwb[0], c * 100, g * 100]; +}; + +convert.apple.rgb = function (apple) { + return [(apple[0] / 65535) * 255, (apple[1] / 65535) * 255, (apple[2] / 65535) * 255]; +}; + +convert.rgb.apple = function (rgb) { + return [(rgb[0] / 255) * 65535, (rgb[1] / 255) * 65535, (rgb[2] / 255) * 65535]; +}; + +convert.gray.rgb = function (args) { + return [args[0] / 100 * 255, args[0] / 100 * 255, args[0] / 100 * 255]; +}; + +convert.gray.hsl = function (args) { + return [0, 0, args[0]]; +}; + +convert.gray.hsv = convert.gray.hsl; + +convert.gray.hwb = function (gray) { + return [0, 100, gray[0]]; +}; + +convert.gray.cmyk = function (gray) { + return [0, 0, 0, gray[0]]; +}; + +convert.gray.lab = function (gray) { + return [gray[0], 0, 0]; +}; + +convert.gray.hex = function (gray) { + const val = Math.round(gray[0] / 100 * 255) & 0xFF; + const integer = (val << 16) + (val << 8) + val; + + const string = integer.toString(16).toUpperCase(); + return '000000'.substring(string.length) + string; +}; + +convert.rgb.gray = function (rgb) { + const val = (rgb[0] + rgb[1] + rgb[2]) / 3; + return [val / 255 * 100]; +}; + + +/***/ }), + +/***/ 75: +/***/ (function(module, __unusedexports, __webpack_require__) { + +"use strict"; + + +var createError = __webpack_require__(566); + +/** + * Resolve or reject a Promise based on response status. + * + * @param {Function} resolve A function that resolves the promise. + * @param {Function} reject A function that rejects the promise. + * @param {object} response The response. + */ +module.exports = function settle(resolve, reject, response) { + var validateStatus = response.config.validateStatus; + if (!response.status || !validateStatus || validateStatus(response.status)) { + resolve(response); + } else { + reject(createError( + 'Request failed with status code ' + response.status, + response.config, + null, + response.request, + response + )); + } +}; + + +/***/ }), + +/***/ 79: +/***/ (function(module, __unusedexports, __webpack_require__) { + +"use strict"; + + +var isAbsoluteURL = __webpack_require__(766); +var combineURLs = __webpack_require__(143); + +/** + * Creates a new URL by combining the baseURL with the requestedURL, + * only when the requestedURL is not already an absolute URL. + * If the requestURL is absolute, this function returns the requestedURL untouched. + * + * @param {string} baseURL The base URL + * @param {string} requestedURL Absolute or relative URL to combine + * @returns {string} The combined full path + */ +module.exports = function buildFullPath(baseURL, requestedURL) { + if (baseURL && !isAbsoluteURL(requestedURL)) { + return combineURLs(baseURL, requestedURL); + } + return requestedURL; +}; + + +/***/ }), + +/***/ 82: +/***/ (function(module, __unusedexports, __webpack_require__) { + +"use strict"; + + +var utils = __webpack_require__(318); +var normalizeHeaderName = __webpack_require__(24); + +var DEFAULT_CONTENT_TYPE = { + 'Content-Type': 'application/x-www-form-urlencoded' +}; + +function setContentTypeIfUnset(headers, value) { + if (!utils.isUndefined(headers) && utils.isUndefined(headers['Content-Type'])) { + headers['Content-Type'] = value; + } +} + +function getDefaultAdapter() { + var adapter; + if (typeof XMLHttpRequest !== 'undefined') { + // For browsers use XHR adapter + adapter = __webpack_require__(943); + } else if (typeof process !== 'undefined' && Object.prototype.toString.call(process) === '[object process]') { + // For node use HTTP adapter + adapter = __webpack_require__(614); + } + return adapter; +} + +var defaults = { + adapter: getDefaultAdapter(), + + transformRequest: [function transformRequest(data, headers) { + normalizeHeaderName(headers, 'Accept'); + normalizeHeaderName(headers, 'Content-Type'); + if (utils.isFormData(data) || + utils.isArrayBuffer(data) || + utils.isBuffer(data) || + utils.isStream(data) || + utils.isFile(data) || + utils.isBlob(data) + ) { + return data; + } + if (utils.isArrayBufferView(data)) { + return data.buffer; + } + if (utils.isURLSearchParams(data)) { + setContentTypeIfUnset(headers, 'application/x-www-form-urlencoded;charset=utf-8'); + return data.toString(); + } + if (utils.isObject(data)) { + setContentTypeIfUnset(headers, 'application/json;charset=utf-8'); + return JSON.stringify(data); + } + return data; + }], + + transformResponse: [function transformResponse(data) { + /*eslint no-param-reassign:0*/ + if (typeof data === 'string') { + try { + data = JSON.parse(data); + } catch (e) { /* Ignore */ } + } + return data; + }], + + /** + * A timeout in milliseconds to abort a request. If set to 0 (default) a + * timeout is not created. + */ + timeout: 0, + + xsrfCookieName: 'XSRF-TOKEN', + xsrfHeaderName: 'X-XSRF-TOKEN', + + maxContentLength: -1, + maxBodyLength: -1, + + validateStatus: function validateStatus(status) { + return status >= 200 && status < 300; + } +}; + +defaults.headers = { + common: { + 'Accept': 'application/json, text/plain, */*' + } +}; + +utils.forEach(['delete', 'get', 'head'], function forEachMethodNoData(method) { + defaults.headers[method] = {}; +}); + +utils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) { + defaults.headers[method] = utils.merge(DEFAULT_CONTENT_TYPE); +}); + +module.exports = defaults; + + +/***/ }), + +/***/ 87: +/***/ (function(module, __unusedexports, __webpack_require__) { + +"use strict"; + + +var utils = __webpack_require__(318); + +function encode(val) { + return encodeURIComponent(val). + replace(/%3A/gi, ':'). + replace(/%24/g, '$'). + replace(/%2C/gi, ','). + replace(/%20/g, '+'). + replace(/%5B/gi, '['). + replace(/%5D/gi, ']'); +} + +/** + * Build a URL by appending params to the end + * + * @param {string} url The base of the url (e.g., http://www.google.com) + * @param {object} [params] The params to be appended + * @returns {string} The formatted url + */ +module.exports = function buildURL(url, params, paramsSerializer) { + /*eslint no-param-reassign:0*/ + if (!params) { + return url; + } + + var serializedParams; + if (paramsSerializer) { + serializedParams = paramsSerializer(params); + } else if (utils.isURLSearchParams(params)) { + serializedParams = params.toString(); + } else { + var parts = []; + + utils.forEach(params, function serialize(val, key) { + if (val === null || typeof val === 'undefined') { + return; + } + + if (utils.isArray(val)) { + key = key + '[]'; + } else { + val = [val]; + } + + utils.forEach(val, function parseValue(v) { + if (utils.isDate(v)) { + v = v.toISOString(); + } else if (utils.isObject(v)) { + v = JSON.stringify(v); + } + parts.push(encode(key) + '=' + encode(v)); + }); + }); + + serializedParams = parts.join('&'); + } + + if (serializedParams) { + var hashmarkIndex = url.indexOf('#'); + if (hashmarkIndex !== -1) { + url = url.slice(0, hashmarkIndex); + } + + url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams; + } + + return url; +}; + + +/***/ }), + +/***/ 88: +/***/ (function(module, __unusedexports, __webpack_require__) { + +"use strict"; + + +var util = __webpack_require__(669); +var fs = __webpack_require__(747); +var path = __webpack_require__(277); + +function camelCase(str) { + const isCamelCase = str !== str.toLowerCase() && str !== str.toUpperCase(); + if (!isCamelCase) { + str = str.toLocaleLowerCase(); + } + if (str.indexOf('-') === -1 && str.indexOf('_') === -1) { + return str; + } + else { + let camelcase = ''; + let nextChrUpper = false; + const leadingHyphens = str.match(/^-+/); + for (let i = leadingHyphens ? leadingHyphens[0].length : 0; i < str.length; i++) { + let chr = str.charAt(i); + if (nextChrUpper) { + nextChrUpper = false; + chr = chr.toLocaleUpperCase(); + } + if (i !== 0 && (chr === '-' || chr === '_')) { + nextChrUpper = true; + } + else if (chr !== '-' && chr !== '_') { + camelcase += chr; + } + } + return camelcase; + } +} +function decamelize(str, joinString) { + const lowercase = str.toLocaleLowerCase(); + joinString = joinString || '-'; + let notCamelcase = ''; + for (let i = 0; i < str.length; i++) { + const chrLower = lowercase.charAt(i); + const chrString = str.charAt(i); + if (chrLower !== chrString && i > 0) { + notCamelcase += `${joinString}${lowercase.charAt(i)}`; + } + else { + notCamelcase += chrString; + } + } + return notCamelcase; +} +function looksLikeNumber(x) { + if (x === null || x === undefined) + return false; + if (typeof x === 'number') + return true; + if (/^0x[0-9a-f]+$/i.test(x)) + return true; + if (x.length > 1 && x[0] === '0') + return false; + return /^[-]?(?:\d+(?:\.\d*)?|\.\d+)(e[-+]?\d+)?$/.test(x); +} + +function tokenizeArgString(argString) { + if (Array.isArray(argString)) { + return argString.map(e => typeof e !== 'string' ? e + '' : e); + } + argString = argString.trim(); + let i = 0; + let prevC = null; + let c = null; + let opening = null; + const args = []; + for (let ii = 0; ii < argString.length; ii++) { + prevC = c; + c = argString.charAt(ii); + if (c === ' ' && !opening) { + if (!(prevC === ' ')) { + i++; + } + continue; + } + if (c === opening) { + opening = null; + } + else if ((c === "'" || c === '"') && !opening) { + opening = c; + } + if (!args[i]) + args[i] = ''; + args[i] += c; + } + return args; +} + +let mixin; +class YargsParser { + constructor(_mixin) { + mixin = _mixin; + } + parse(argsInput, options) { + const opts = Object.assign({ + alias: undefined, + array: undefined, + boolean: undefined, + config: undefined, + configObjects: undefined, + configuration: undefined, + coerce: undefined, + count: undefined, + default: undefined, + envPrefix: undefined, + narg: undefined, + normalize: undefined, + string: undefined, + number: undefined, + __: undefined, + key: undefined + }, options); + const args = tokenizeArgString(argsInput); + const aliases = combineAliases(Object.assign(Object.create(null), opts.alias)); + const configuration = Object.assign({ + 'boolean-negation': true, + 'camel-case-expansion': true, + 'combine-arrays': false, + 'dot-notation': true, + 'duplicate-arguments-array': true, + 'flatten-duplicate-arrays': true, + 'greedy-arrays': true, + 'halt-at-non-option': false, + 'nargs-eats-options': false, + 'negation-prefix': 'no-', + 'parse-numbers': true, + 'parse-positional-numbers': true, + 'populate--': false, + 'set-placeholder-key': false, + 'short-option-groups': true, + 'strip-aliased': false, + 'strip-dashed': false, + 'unknown-options-as-args': false + }, opts.configuration); + const defaults = Object.assign(Object.create(null), opts.default); + const configObjects = opts.configObjects || []; + const envPrefix = opts.envPrefix; + const notFlagsOption = configuration['populate--']; + const notFlagsArgv = notFlagsOption ? '--' : '_'; + const newAliases = Object.create(null); + const defaulted = Object.create(null); + const __ = opts.__ || mixin.format; + const flags = { + aliases: Object.create(null), + arrays: Object.create(null), + bools: Object.create(null), + strings: Object.create(null), + numbers: Object.create(null), + counts: Object.create(null), + normalize: Object.create(null), + configs: Object.create(null), + nargs: Object.create(null), + coercions: Object.create(null), + keys: [] + }; + const negative = /^-([0-9]+(\.[0-9]+)?|\.[0-9]+)$/; + const negatedBoolean = new RegExp('^--' + configuration['negation-prefix'] + '(.+)'); + [].concat(opts.array || []).filter(Boolean).forEach(function (opt) { + const key = typeof opt === 'object' ? opt.key : opt; + const assignment = Object.keys(opt).map(function (key) { + const arrayFlagKeys = { + boolean: 'bools', + string: 'strings', + number: 'numbers' + }; + return arrayFlagKeys[key]; + }).filter(Boolean).pop(); + if (assignment) { + flags[assignment][key] = true; + } + flags.arrays[key] = true; + flags.keys.push(key); + }); + [].concat(opts.boolean || []).filter(Boolean).forEach(function (key) { + flags.bools[key] = true; + flags.keys.push(key); + }); + [].concat(opts.string || []).filter(Boolean).forEach(function (key) { + flags.strings[key] = true; + flags.keys.push(key); + }); + [].concat(opts.number || []).filter(Boolean).forEach(function (key) { + flags.numbers[key] = true; + flags.keys.push(key); + }); + [].concat(opts.count || []).filter(Boolean).forEach(function (key) { + flags.counts[key] = true; + flags.keys.push(key); + }); + [].concat(opts.normalize || []).filter(Boolean).forEach(function (key) { + flags.normalize[key] = true; + flags.keys.push(key); + }); + if (typeof opts.narg === 'object') { + Object.entries(opts.narg).forEach(([key, value]) => { + if (typeof value === 'number') { + flags.nargs[key] = value; + flags.keys.push(key); + } + }); + } + if (typeof opts.coerce === 'object') { + Object.entries(opts.coerce).forEach(([key, value]) => { + if (typeof value === 'function') { + flags.coercions[key] = value; + flags.keys.push(key); + } + }); + } + if (typeof opts.config !== 'undefined') { + if (Array.isArray(opts.config) || typeof opts.config === 'string') { + [].concat(opts.config).filter(Boolean).forEach(function (key) { + flags.configs[key] = true; + }); + } + else if (typeof opts.config === 'object') { + Object.entries(opts.config).forEach(([key, value]) => { + if (typeof value === 'boolean' || typeof value === 'function') { + flags.configs[key] = value; + } + }); + } + } + extendAliases(opts.key, aliases, opts.default, flags.arrays); + Object.keys(defaults).forEach(function (key) { + (flags.aliases[key] || []).forEach(function (alias) { + defaults[alias] = defaults[key]; + }); + }); + let error = null; + checkConfiguration(); + let notFlags = []; + const argv = Object.assign(Object.create(null), { _: [] }); + const argvReturn = {}; + for (let i = 0; i < args.length; i++) { + const arg = args[i]; + let broken; + let key; + let letters; + let m; + let next; + let value; + if (arg !== '--' && isUnknownOptionAsArg(arg)) { + pushPositional(arg); + } + else if (arg.match(/---+(=|$)/)) { + pushPositional(arg); + continue; + } + else if (arg.match(/^--.+=/) || (!configuration['short-option-groups'] && arg.match(/^-.+=/))) { + m = arg.match(/^--?([^=]+)=([\s\S]*)$/); + if (m !== null && Array.isArray(m) && m.length >= 3) { + if (checkAllAliases(m[1], flags.arrays)) { + i = eatArray(i, m[1], args, m[2]); + } + else if (checkAllAliases(m[1], flags.nargs) !== false) { + i = eatNargs(i, m[1], args, m[2]); + } + else { + setArg(m[1], m[2]); + } + } + } + else if (arg.match(negatedBoolean) && configuration['boolean-negation']) { + m = arg.match(negatedBoolean); + if (m !== null && Array.isArray(m) && m.length >= 2) { + key = m[1]; + setArg(key, checkAllAliases(key, flags.arrays) ? [false] : false); + } + } + else if (arg.match(/^--.+/) || (!configuration['short-option-groups'] && arg.match(/^-[^-]+/))) { + m = arg.match(/^--?(.+)/); + if (m !== null && Array.isArray(m) && m.length >= 2) { + key = m[1]; + if (checkAllAliases(key, flags.arrays)) { + i = eatArray(i, key, args); + } + else if (checkAllAliases(key, flags.nargs) !== false) { + i = eatNargs(i, key, args); + } + else { + next = args[i + 1]; + if (next !== undefined && (!next.match(/^-/) || + next.match(negative)) && + !checkAllAliases(key, flags.bools) && + !checkAllAliases(key, flags.counts)) { + setArg(key, next); + i++; + } + else if (/^(true|false)$/.test(next)) { + setArg(key, next); + i++; + } + else { + setArg(key, defaultValue(key)); + } + } + } + } + else if (arg.match(/^-.\..+=/)) { + m = arg.match(/^-([^=]+)=([\s\S]*)$/); + if (m !== null && Array.isArray(m) && m.length >= 3) { + setArg(m[1], m[2]); + } + } + else if (arg.match(/^-.\..+/) && !arg.match(negative)) { + next = args[i + 1]; + m = arg.match(/^-(.\..+)/); + if (m !== null && Array.isArray(m) && m.length >= 2) { + key = m[1]; + if (next !== undefined && !next.match(/^-/) && + !checkAllAliases(key, flags.bools) && + !checkAllAliases(key, flags.counts)) { + setArg(key, next); + i++; + } + else { + setArg(key, defaultValue(key)); + } + } + } + else if (arg.match(/^-[^-]+/) && !arg.match(negative)) { + letters = arg.slice(1, -1).split(''); + broken = false; + for (let j = 0; j < letters.length; j++) { + next = arg.slice(j + 2); + if (letters[j + 1] && letters[j + 1] === '=') { + value = arg.slice(j + 3); + key = letters[j]; + if (checkAllAliases(key, flags.arrays)) { + i = eatArray(i, key, args, value); + } + else if (checkAllAliases(key, flags.nargs) !== false) { + i = eatNargs(i, key, args, value); + } + else { + setArg(key, value); + } + broken = true; + break; + } + if (next === '-') { + setArg(letters[j], next); + continue; + } + if (/[A-Za-z]/.test(letters[j]) && + /^-?\d+(\.\d*)?(e-?\d+)?$/.test(next) && + checkAllAliases(next, flags.bools) === false) { + setArg(letters[j], next); + broken = true; + break; + } + if (letters[j + 1] && letters[j + 1].match(/\W/)) { + setArg(letters[j], next); + broken = true; + break; + } + else { + setArg(letters[j], defaultValue(letters[j])); + } + } + key = arg.slice(-1)[0]; + if (!broken && key !== '-') { + if (checkAllAliases(key, flags.arrays)) { + i = eatArray(i, key, args); + } + else if (checkAllAliases(key, flags.nargs) !== false) { + i = eatNargs(i, key, args); + } + else { + next = args[i + 1]; + if (next !== undefined && (!/^(-|--)[^-]/.test(next) || + next.match(negative)) && + !checkAllAliases(key, flags.bools) && + !checkAllAliases(key, flags.counts)) { + setArg(key, next); + i++; + } + else if (/^(true|false)$/.test(next)) { + setArg(key, next); + i++; + } + else { + setArg(key, defaultValue(key)); + } + } + } + } + else if (arg.match(/^-[0-9]$/) && + arg.match(negative) && + checkAllAliases(arg.slice(1), flags.bools)) { + key = arg.slice(1); + setArg(key, defaultValue(key)); + } + else if (arg === '--') { + notFlags = args.slice(i + 1); + break; + } + else if (configuration['halt-at-non-option']) { + notFlags = args.slice(i); + break; + } + else { + pushPositional(arg); + } + } + applyEnvVars(argv, true); + applyEnvVars(argv, false); + setConfig(argv); + setConfigObjects(); + applyDefaultsAndAliases(argv, flags.aliases, defaults, true); + applyCoercions(argv); + if (configuration['set-placeholder-key']) + setPlaceholderKeys(argv); + Object.keys(flags.counts).forEach(function (key) { + if (!hasKey(argv, key.split('.'))) + setArg(key, 0); + }); + if (notFlagsOption && notFlags.length) + argv[notFlagsArgv] = []; + notFlags.forEach(function (key) { + argv[notFlagsArgv].push(key); + }); + if (configuration['camel-case-expansion'] && configuration['strip-dashed']) { + Object.keys(argv).filter(key => key !== '--' && key.includes('-')).forEach(key => { + delete argv[key]; + }); + } + if (configuration['strip-aliased']) { + [].concat(...Object.keys(aliases).map(k => aliases[k])).forEach(alias => { + if (configuration['camel-case-expansion'] && alias.includes('-')) { + delete argv[alias.split('.').map(prop => camelCase(prop)).join('.')]; + } + delete argv[alias]; + }); + } + function pushPositional(arg) { + const maybeCoercedNumber = maybeCoerceNumber('_', arg); + if (typeof maybeCoercedNumber === 'string' || typeof maybeCoercedNumber === 'number') { + argv._.push(maybeCoercedNumber); + } + } + function eatNargs(i, key, args, argAfterEqualSign) { + let ii; + let toEat = checkAllAliases(key, flags.nargs); + toEat = typeof toEat !== 'number' || isNaN(toEat) ? 1 : toEat; + if (toEat === 0) { + if (!isUndefined(argAfterEqualSign)) { + error = Error(__('Argument unexpected for: %s', key)); + } + setArg(key, defaultValue(key)); + return i; + } + let available = isUndefined(argAfterEqualSign) ? 0 : 1; + if (configuration['nargs-eats-options']) { + if (args.length - (i + 1) + available < toEat) { + error = Error(__('Not enough arguments following: %s', key)); + } + available = toEat; + } + else { + for (ii = i + 1; ii < args.length; ii++) { + if (!args[ii].match(/^-[^0-9]/) || args[ii].match(negative) || isUnknownOptionAsArg(args[ii])) + available++; + else + break; + } + if (available < toEat) + error = Error(__('Not enough arguments following: %s', key)); + } + let consumed = Math.min(available, toEat); + if (!isUndefined(argAfterEqualSign) && consumed > 0) { + setArg(key, argAfterEqualSign); + consumed--; + } + for (ii = i + 1; ii < (consumed + i + 1); ii++) { + setArg(key, args[ii]); + } + return (i + consumed); + } + function eatArray(i, key, args, argAfterEqualSign) { + let argsToSet = []; + let next = argAfterEqualSign || args[i + 1]; + const nargsCount = checkAllAliases(key, flags.nargs); + if (checkAllAliases(key, flags.bools) && !(/^(true|false)$/.test(next))) { + argsToSet.push(true); + } + else if (isUndefined(next) || + (isUndefined(argAfterEqualSign) && /^-/.test(next) && !negative.test(next) && !isUnknownOptionAsArg(next))) { + if (defaults[key] !== undefined) { + const defVal = defaults[key]; + argsToSet = Array.isArray(defVal) ? defVal : [defVal]; + } + } + else { + if (!isUndefined(argAfterEqualSign)) { + argsToSet.push(processValue(key, argAfterEqualSign)); + } + for (let ii = i + 1; ii < args.length; ii++) { + if ((!configuration['greedy-arrays'] && argsToSet.length > 0) || + (nargsCount && typeof nargsCount === 'number' && argsToSet.length >= nargsCount)) + break; + next = args[ii]; + if (/^-/.test(next) && !negative.test(next) && !isUnknownOptionAsArg(next)) + break; + i = ii; + argsToSet.push(processValue(key, next)); + } + } + if (typeof nargsCount === 'number' && ((nargsCount && argsToSet.length < nargsCount) || + (isNaN(nargsCount) && argsToSet.length === 0))) { + error = Error(__('Not enough arguments following: %s', key)); + } + setArg(key, argsToSet); + return i; + } + function setArg(key, val) { + if (/-/.test(key) && configuration['camel-case-expansion']) { + const alias = key.split('.').map(function (prop) { + return camelCase(prop); + }).join('.'); + addNewAlias(key, alias); + } + const value = processValue(key, val); + const splitKey = key.split('.'); + setKey(argv, splitKey, value); + if (flags.aliases[key]) { + flags.aliases[key].forEach(function (x) { + const keyProperties = x.split('.'); + setKey(argv, keyProperties, value); + }); + } + if (splitKey.length > 1 && configuration['dot-notation']) { + (flags.aliases[splitKey[0]] || []).forEach(function (x) { + let keyProperties = x.split('.'); + const a = [].concat(splitKey); + a.shift(); + keyProperties = keyProperties.concat(a); + if (!(flags.aliases[key] || []).includes(keyProperties.join('.'))) { + setKey(argv, keyProperties, value); + } + }); + } + if (checkAllAliases(key, flags.normalize) && !checkAllAliases(key, flags.arrays)) { + const keys = [key].concat(flags.aliases[key] || []); + keys.forEach(function (key) { + Object.defineProperty(argvReturn, key, { + enumerable: true, + get() { + return val; + }, + set(value) { + val = typeof value === 'string' ? mixin.normalize(value) : value; + } + }); + }); + } + } + function addNewAlias(key, alias) { + if (!(flags.aliases[key] && flags.aliases[key].length)) { + flags.aliases[key] = [alias]; + newAliases[alias] = true; + } + if (!(flags.aliases[alias] && flags.aliases[alias].length)) { + addNewAlias(alias, key); + } + } + function processValue(key, val) { + if (typeof val === 'string' && + (val[0] === "'" || val[0] === '"') && + val[val.length - 1] === val[0]) { + val = val.substring(1, val.length - 1); + } + if (checkAllAliases(key, flags.bools) || checkAllAliases(key, flags.counts)) { + if (typeof val === 'string') + val = val === 'true'; + } + let value = Array.isArray(val) + ? val.map(function (v) { return maybeCoerceNumber(key, v); }) + : maybeCoerceNumber(key, val); + if (checkAllAliases(key, flags.counts) && (isUndefined(value) || typeof value === 'boolean')) { + value = increment(); + } + if (checkAllAliases(key, flags.normalize) && checkAllAliases(key, flags.arrays)) { + if (Array.isArray(val)) + value = val.map((val) => { return mixin.normalize(val); }); + else + value = mixin.normalize(val); + } + return value; + } + function maybeCoerceNumber(key, value) { + if (!configuration['parse-positional-numbers'] && key === '_') + return value; + if (!checkAllAliases(key, flags.strings) && !checkAllAliases(key, flags.bools) && !Array.isArray(value)) { + const shouldCoerceNumber = looksLikeNumber(value) && configuration['parse-numbers'] && (Number.isSafeInteger(Math.floor(parseFloat(`${value}`)))); + if (shouldCoerceNumber || (!isUndefined(value) && checkAllAliases(key, flags.numbers))) { + value = Number(value); + } + } + return value; + } + function setConfig(argv) { + const configLookup = Object.create(null); + applyDefaultsAndAliases(configLookup, flags.aliases, defaults); + Object.keys(flags.configs).forEach(function (configKey) { + const configPath = argv[configKey] || configLookup[configKey]; + if (configPath) { + try { + let config = null; + const resolvedConfigPath = mixin.resolve(mixin.cwd(), configPath); + const resolveConfig = flags.configs[configKey]; + if (typeof resolveConfig === 'function') { + try { + config = resolveConfig(resolvedConfigPath); + } + catch (e) { + config = e; + } + if (config instanceof Error) { + error = config; + return; + } + } + else { + config = mixin.require(resolvedConfigPath); + } + setConfigObject(config); + } + catch (ex) { + if (ex.name === 'PermissionDenied') + error = ex; + else if (argv[configKey]) + error = Error(__('Invalid JSON config file: %s', configPath)); + } + } + }); + } + function setConfigObject(config, prev) { + Object.keys(config).forEach(function (key) { + const value = config[key]; + const fullKey = prev ? prev + '.' + key : key; + if (typeof value === 'object' && value !== null && !Array.isArray(value) && configuration['dot-notation']) { + setConfigObject(value, fullKey); + } + else { + if (!hasKey(argv, fullKey.split('.')) || (checkAllAliases(fullKey, flags.arrays) && configuration['combine-arrays'])) { + setArg(fullKey, value); + } + } + }); + } + function setConfigObjects() { + if (typeof configObjects !== 'undefined') { + configObjects.forEach(function (configObject) { + setConfigObject(configObject); + }); + } + } + function applyEnvVars(argv, configOnly) { + if (typeof envPrefix === 'undefined') + return; + const prefix = typeof envPrefix === 'string' ? envPrefix : ''; + const env = mixin.env(); + Object.keys(env).forEach(function (envVar) { + if (prefix === '' || envVar.lastIndexOf(prefix, 0) === 0) { + const keys = envVar.split('__').map(function (key, i) { + if (i === 0) { + key = key.substring(prefix.length); + } + return camelCase(key); + }); + if (((configOnly && flags.configs[keys.join('.')]) || !configOnly) && !hasKey(argv, keys)) { + setArg(keys.join('.'), env[envVar]); + } + } + }); + } + function applyCoercions(argv) { + let coerce; + const applied = new Set(); + Object.keys(argv).forEach(function (key) { + if (!applied.has(key)) { + coerce = checkAllAliases(key, flags.coercions); + if (typeof coerce === 'function') { + try { + const value = maybeCoerceNumber(key, coerce(argv[key])); + ([].concat(flags.aliases[key] || [], key)).forEach(ali => { + applied.add(ali); + argv[ali] = value; + }); + } + catch (err) { + error = err; + } + } + } + }); + } + function setPlaceholderKeys(argv) { + flags.keys.forEach((key) => { + if (~key.indexOf('.')) + return; + if (typeof argv[key] === 'undefined') + argv[key] = undefined; + }); + return argv; + } + function applyDefaultsAndAliases(obj, aliases, defaults, canLog = false) { + Object.keys(defaults).forEach(function (key) { + if (!hasKey(obj, key.split('.'))) { + setKey(obj, key.split('.'), defaults[key]); + if (canLog) + defaulted[key] = true; + (aliases[key] || []).forEach(function (x) { + if (hasKey(obj, x.split('.'))) + return; + setKey(obj, x.split('.'), defaults[key]); + }); + } + }); + } + function hasKey(obj, keys) { + let o = obj; + if (!configuration['dot-notation']) + keys = [keys.join('.')]; + keys.slice(0, -1).forEach(function (key) { + o = (o[key] || {}); + }); + const key = keys[keys.length - 1]; + if (typeof o !== 'object') + return false; + else + return key in o; + } + function setKey(obj, keys, value) { + let o = obj; + if (!configuration['dot-notation']) + keys = [keys.join('.')]; + keys.slice(0, -1).forEach(function (key) { + key = sanitizeKey(key); + if (typeof o === 'object' && o[key] === undefined) { + o[key] = {}; + } + if (typeof o[key] !== 'object' || Array.isArray(o[key])) { + if (Array.isArray(o[key])) { + o[key].push({}); + } + else { + o[key] = [o[key], {}]; + } + o = o[key][o[key].length - 1]; + } + else { + o = o[key]; + } + }); + const key = sanitizeKey(keys[keys.length - 1]); + const isTypeArray = checkAllAliases(keys.join('.'), flags.arrays); + const isValueArray = Array.isArray(value); + let duplicate = configuration['duplicate-arguments-array']; + if (!duplicate && checkAllAliases(key, flags.nargs)) { + duplicate = true; + if ((!isUndefined(o[key]) && flags.nargs[key] === 1) || (Array.isArray(o[key]) && o[key].length === flags.nargs[key])) { + o[key] = undefined; + } + } + if (value === increment()) { + o[key] = increment(o[key]); + } + else if (Array.isArray(o[key])) { + if (duplicate && isTypeArray && isValueArray) { + o[key] = configuration['flatten-duplicate-arrays'] ? o[key].concat(value) : (Array.isArray(o[key][0]) ? o[key] : [o[key]]).concat([value]); + } + else if (!duplicate && Boolean(isTypeArray) === Boolean(isValueArray)) { + o[key] = value; + } + else { + o[key] = o[key].concat([value]); + } + } + else if (o[key] === undefined && isTypeArray) { + o[key] = isValueArray ? value : [value]; + } + else if (duplicate && !(o[key] === undefined || + checkAllAliases(key, flags.counts) || + checkAllAliases(key, flags.bools))) { + o[key] = [o[key], value]; + } + else { + o[key] = value; + } + } + function extendAliases(...args) { + args.forEach(function (obj) { + Object.keys(obj || {}).forEach(function (key) { + if (flags.aliases[key]) + return; + flags.aliases[key] = [].concat(aliases[key] || []); + flags.aliases[key].concat(key).forEach(function (x) { + if (/-/.test(x) && configuration['camel-case-expansion']) { + const c = camelCase(x); + if (c !== key && flags.aliases[key].indexOf(c) === -1) { + flags.aliases[key].push(c); + newAliases[c] = true; + } + } + }); + flags.aliases[key].concat(key).forEach(function (x) { + if (x.length > 1 && /[A-Z]/.test(x) && configuration['camel-case-expansion']) { + const c = decamelize(x, '-'); + if (c !== key && flags.aliases[key].indexOf(c) === -1) { + flags.aliases[key].push(c); + newAliases[c] = true; + } + } + }); + flags.aliases[key].forEach(function (x) { + flags.aliases[x] = [key].concat(flags.aliases[key].filter(function (y) { + return x !== y; + })); + }); + }); + }); + } + function checkAllAliases(key, flag) { + const toCheck = [].concat(flags.aliases[key] || [], key); + const keys = Object.keys(flag); + const setAlias = toCheck.find(key => keys.includes(key)); + return setAlias ? flag[setAlias] : false; + } + function hasAnyFlag(key) { + const flagsKeys = Object.keys(flags); + const toCheck = [].concat(flagsKeys.map(k => flags[k])); + return toCheck.some(function (flag) { + return Array.isArray(flag) ? flag.includes(key) : flag[key]; + }); + } + function hasFlagsMatching(arg, ...patterns) { + const toCheck = [].concat(...patterns); + return toCheck.some(function (pattern) { + const match = arg.match(pattern); + return match && hasAnyFlag(match[1]); + }); + } + function hasAllShortFlags(arg) { + if (arg.match(negative) || !arg.match(/^-[^-]+/)) { + return false; + } + let hasAllFlags = true; + let next; + const letters = arg.slice(1).split(''); + for (let j = 0; j < letters.length; j++) { + next = arg.slice(j + 2); + if (!hasAnyFlag(letters[j])) { + hasAllFlags = false; + break; + } + if ((letters[j + 1] && letters[j + 1] === '=') || + next === '-' || + (/[A-Za-z]/.test(letters[j]) && /^-?\d+(\.\d*)?(e-?\d+)?$/.test(next)) || + (letters[j + 1] && letters[j + 1].match(/\W/))) { + break; + } + } + return hasAllFlags; + } + function isUnknownOptionAsArg(arg) { + return configuration['unknown-options-as-args'] && isUnknownOption(arg); + } + function isUnknownOption(arg) { + if (arg.match(negative)) { + return false; + } + if (hasAllShortFlags(arg)) { + return false; + } + const flagWithEquals = /^-+([^=]+?)=[\s\S]*$/; + const normalFlag = /^-+([^=]+?)$/; + const flagEndingInHyphen = /^-+([^=]+?)-$/; + const flagEndingInDigits = /^-+([^=]+?\d+)$/; + const flagEndingInNonWordCharacters = /^-+([^=]+?)\W+.*$/; + return !hasFlagsMatching(arg, flagWithEquals, negatedBoolean, normalFlag, flagEndingInHyphen, flagEndingInDigits, flagEndingInNonWordCharacters); + } + function defaultValue(key) { + if (!checkAllAliases(key, flags.bools) && + !checkAllAliases(key, flags.counts) && + `${key}` in defaults) { + return defaults[key]; + } + else { + return defaultForType(guessType(key)); + } + } + function defaultForType(type) { + const def = { + boolean: true, + string: '', + number: undefined, + array: [] + }; + return def[type]; + } + function guessType(key) { + let type = 'boolean'; + if (checkAllAliases(key, flags.strings)) + type = 'string'; + else if (checkAllAliases(key, flags.numbers)) + type = 'number'; + else if (checkAllAliases(key, flags.bools)) + type = 'boolean'; + else if (checkAllAliases(key, flags.arrays)) + type = 'array'; + return type; + } + function isUndefined(num) { + return num === undefined; + } + function checkConfiguration() { + Object.keys(flags.counts).find(key => { + if (checkAllAliases(key, flags.arrays)) { + error = Error(__('Invalid configuration: %s, opts.count excludes opts.array.', key)); + return true; + } + else if (checkAllAliases(key, flags.nargs)) { + error = Error(__('Invalid configuration: %s, opts.count excludes opts.narg.', key)); + return true; + } + return false; + }); + } + return { + aliases: Object.assign({}, flags.aliases), + argv: Object.assign(argvReturn, argv), + configuration: configuration, + defaulted: Object.assign({}, defaulted), + error: error, + newAliases: Object.assign({}, newAliases) + }; + } +} +function combineAliases(aliases) { + const aliasArrays = []; + const combined = Object.create(null); + let change = true; + Object.keys(aliases).forEach(function (key) { + aliasArrays.push([].concat(aliases[key], key)); + }); + while (change) { + change = false; + for (let i = 0; i < aliasArrays.length; i++) { + for (let ii = i + 1; ii < aliasArrays.length; ii++) { + const intersect = aliasArrays[i].filter(function (v) { + return aliasArrays[ii].indexOf(v) !== -1; + }); + if (intersect.length) { + aliasArrays[i] = aliasArrays[i].concat(aliasArrays[ii]); + aliasArrays.splice(ii, 1); + change = true; + break; + } + } + } + } + aliasArrays.forEach(function (aliasArray) { + aliasArray = aliasArray.filter(function (v, i, self) { + return self.indexOf(v) === i; + }); + const lastAlias = aliasArray.pop(); + if (lastAlias !== undefined && typeof lastAlias === 'string') { + combined[lastAlias] = aliasArray; + } + }); + return combined; +} +function increment(orig) { + return orig !== undefined ? orig + 1 : 1; +} +function sanitizeKey(key) { + if (key === '__proto__') + return '___proto___'; + return key; +} + +const minNodeVersion = (process && process.env && process.env.YARGS_MIN_NODE_VERSION) + ? Number(process.env.YARGS_MIN_NODE_VERSION) + : 10; +if (process && process.version) { + const major = Number(process.version.match(/v([^.]+)/)[1]); + if (major < minNodeVersion) { + throw Error(`yargs parser supports a minimum Node.js version of ${minNodeVersion}. Read our version support policy: https://github.com/yargs/yargs-parser#supported-nodejs-versions`); + } +} +const env = process ? process.env : {}; +const parser = new YargsParser({ + cwd: process.cwd, + env: () => { + return env; + }, + format: util.format, + normalize: path.normalize, + resolve: path.resolve, + require: (path) => { + if (true) { + return __webpack_require__(670)(path); + } + else {} + } +}); +const yargsParser = function Parser(args, opts) { + const result = parser.parse(args.slice(), opts); + return result.argv; +}; +yargsParser.detailed = function (args, opts) { + return parser.parse(args.slice(), opts); +}; +yargsParser.camelCase = camelCase; +yargsParser.decamelize = decamelize; +yargsParser.looksLikeNumber = looksLikeNumber; + +module.exports = yargsParser; + + +/***/ }), + +/***/ 127: +/***/ (function(module) { + +"use strict"; + +// Call this function in a another function to find out the file from +// which that function was called from. (Inspects the v8 stack trace) +// +// Inspired by http://stackoverflow.com/questions/13227489 +module.exports = function getCallerFile(position) { + if (position === void 0) { position = 2; } + if (position >= Error.stackTraceLimit) { + throw new TypeError('getCallerFile(position) requires position be less then Error.stackTraceLimit but position was: `' + position + '` and Error.stackTraceLimit was: `' + Error.stackTraceLimit + '`'); + } + var oldPrepareStackTrace = Error.prepareStackTrace; + Error.prepareStackTrace = function (_, stack) { return stack; }; + var stack = new Error().stack; + Error.prepareStackTrace = oldPrepareStackTrace; + if (stack !== null && typeof stack === 'object') { + // stack[0] holds this file + // stack[1] holds where this function was called + // stack[2] holds the file we're interested in + return stack[position] ? stack[position].getFileName() : undefined; + } +}; +//# sourceMappingURL=index.js.map + +/***/ }), + +/***/ 143: +/***/ (function(module) { + +"use strict"; + + +/** + * Creates a new URL by combining the specified URLs + * + * @param {string} baseURL The base URL + * @param {string} relativeURL The relative URL + * @returns {string} The combined URL + */ +module.exports = function combineURLs(baseURL, relativeURL) { + return relativeURL + ? baseURL.replace(/\/+$/, '') + '/' + relativeURL.replace(/^\/+/, '') + : baseURL; +}; + + +/***/ }), + +/***/ 150: +/***/ (function(module, __unusedexports, __webpack_require__) { + +var url = __webpack_require__(835); +var URL = url.URL; +var http = __webpack_require__(605); +var https = __webpack_require__(211); +var Writable = __webpack_require__(413).Writable; +var assert = __webpack_require__(357); +var debug = __webpack_require__(456); + +// Create handlers that pass events from native requests +var events = ["abort", "aborted", "connect", "error", "socket", "timeout"]; +var eventHandlers = Object.create(null); +events.forEach(function (event) { + eventHandlers[event] = function (arg1, arg2, arg3) { + this._redirectable.emit(event, arg1, arg2, arg3); + }; +}); + +// Error types with codes +var RedirectionError = createErrorType( + "ERR_FR_REDIRECTION_FAILURE", + "" +); +var TooManyRedirectsError = createErrorType( + "ERR_FR_TOO_MANY_REDIRECTS", + "Maximum number of redirects exceeded" +); +var MaxBodyLengthExceededError = createErrorType( + "ERR_FR_MAX_BODY_LENGTH_EXCEEDED", + "Request body larger than maxBodyLength limit" +); +var WriteAfterEndError = createErrorType( + "ERR_STREAM_WRITE_AFTER_END", + "write after end" +); + +// An HTTP(S) request that can be redirected +function RedirectableRequest(options, responseCallback) { + // Initialize the request + Writable.call(this); + this._sanitizeOptions(options); + this._options = options; + this._ended = false; + this._ending = false; + this._redirectCount = 0; + this._redirects = []; + this._requestBodyLength = 0; + this._requestBodyBuffers = []; + + // Attach a callback if passed + if (responseCallback) { + this.on("response", responseCallback); + } + + // React to responses of native requests + var self = this; + this._onNativeResponse = function (response) { + self._processResponse(response); + }; + + // Perform the first request + this._performRequest(); +} +RedirectableRequest.prototype = Object.create(Writable.prototype); + +RedirectableRequest.prototype.abort = function () { + // Abort the internal request + abortRequest(this._currentRequest); + + // Abort this request + this.emit("abort"); + this.removeAllListeners(); +}; + +// Writes buffered data to the current native request +RedirectableRequest.prototype.write = function (data, encoding, callback) { + // Writing is not allowed if end has been called + if (this._ending) { + throw new WriteAfterEndError(); + } + + // Validate input and shift parameters if necessary + if (!(typeof data === "string" || typeof data === "object" && ("length" in data))) { + throw new TypeError("data should be a string, Buffer or Uint8Array"); + } + if (typeof encoding === "function") { + callback = encoding; + encoding = null; + } + + // Ignore empty buffers, since writing them doesn't invoke the callback + // https://github.com/nodejs/node/issues/22066 + if (data.length === 0) { + if (callback) { + callback(); + } + return; + } + // Only write when we don't exceed the maximum body length + if (this._requestBodyLength + data.length <= this._options.maxBodyLength) { + this._requestBodyLength += data.length; + this._requestBodyBuffers.push({ data: data, encoding: encoding }); + this._currentRequest.write(data, encoding, callback); + } + // Error when we exceed the maximum body length + else { + this.emit("error", new MaxBodyLengthExceededError()); + this.abort(); + } +}; + +// Ends the current native request +RedirectableRequest.prototype.end = function (data, encoding, callback) { + // Shift parameters if necessary + if (typeof data === "function") { + callback = data; + data = encoding = null; + } + else if (typeof encoding === "function") { + callback = encoding; + encoding = null; + } + + // Write data if needed and end + if (!data) { + this._ended = this._ending = true; + this._currentRequest.end(null, null, callback); + } + else { + var self = this; + var currentRequest = this._currentRequest; + this.write(data, encoding, function () { + self._ended = true; + currentRequest.end(null, null, callback); + }); + this._ending = true; + } +}; + +// Sets a header value on the current native request +RedirectableRequest.prototype.setHeader = function (name, value) { + this._options.headers[name] = value; + this._currentRequest.setHeader(name, value); +}; + +// Clears a header value on the current native request +RedirectableRequest.prototype.removeHeader = function (name) { + delete this._options.headers[name]; + this._currentRequest.removeHeader(name); +}; + +// Global timeout for all underlying requests +RedirectableRequest.prototype.setTimeout = function (msecs, callback) { + var self = this; + if (callback) { + this.on("timeout", callback); + } + + function destroyOnTimeout(socket) { + socket.setTimeout(msecs); + socket.removeListener("timeout", socket.destroy); + socket.addListener("timeout", socket.destroy); + } + + // Sets up a timer to trigger a timeout event + function startTimer(socket) { + if (self._timeout) { + clearTimeout(self._timeout); + } + self._timeout = setTimeout(function () { + self.emit("timeout"); + clearTimer(); + }, msecs); + destroyOnTimeout(socket); + } + + // Prevent a timeout from triggering + function clearTimer() { + clearTimeout(this._timeout); + if (callback) { + self.removeListener("timeout", callback); + } + if (!this.socket) { + self._currentRequest.removeListener("socket", startTimer); + } + } + + // Start the timer when the socket is opened + if (this.socket) { + startTimer(this.socket); + } + else { + this._currentRequest.once("socket", startTimer); + } + + this.on("socket", destroyOnTimeout); + this.once("response", clearTimer); + this.once("error", clearTimer); + + return this; +}; + +// Proxy all other public ClientRequest methods +[ + "flushHeaders", "getHeader", + "setNoDelay", "setSocketKeepAlive", +].forEach(function (method) { + RedirectableRequest.prototype[method] = function (a, b) { + return this._currentRequest[method](a, b); + }; +}); + +// Proxy all public ClientRequest properties +["aborted", "connection", "socket"].forEach(function (property) { + Object.defineProperty(RedirectableRequest.prototype, property, { + get: function () { return this._currentRequest[property]; }, + }); +}); + +RedirectableRequest.prototype._sanitizeOptions = function (options) { + // Ensure headers are always present + if (!options.headers) { + options.headers = {}; + } + + // Since http.request treats host as an alias of hostname, + // but the url module interprets host as hostname plus port, + // eliminate the host property to avoid confusion. + if (options.host) { + // Use hostname if set, because it has precedence + if (!options.hostname) { + options.hostname = options.host; + } + delete options.host; + } + + // Complete the URL object when necessary + if (!options.pathname && options.path) { + var searchPos = options.path.indexOf("?"); + if (searchPos < 0) { + options.pathname = options.path; + } + else { + options.pathname = options.path.substring(0, searchPos); + options.search = options.path.substring(searchPos); + } + } +}; + + +// Executes the next native request (initial or redirect) +RedirectableRequest.prototype._performRequest = function () { + // Load the native protocol + var protocol = this._options.protocol; + var nativeProtocol = this._options.nativeProtocols[protocol]; + if (!nativeProtocol) { + this.emit("error", new TypeError("Unsupported protocol " + protocol)); + return; + } + + // If specified, use the agent corresponding to the protocol + // (HTTP and HTTPS use different types of agents) + if (this._options.agents) { + var scheme = protocol.substr(0, protocol.length - 1); + this._options.agent = this._options.agents[scheme]; + } + + // Create the native request + var request = this._currentRequest = + nativeProtocol.request(this._options, this._onNativeResponse); + this._currentUrl = url.format(this._options); + + // Set up event handlers + request._redirectable = this; + for (var e = 0; e < events.length; e++) { + request.on(events[e], eventHandlers[events[e]]); + } + + // End a redirected request + // (The first request must be ended explicitly with RedirectableRequest#end) + if (this._isRedirect) { + // Write the request entity and end. + var i = 0; + var self = this; + var buffers = this._requestBodyBuffers; + (function writeNext(error) { + // Only write if this request has not been redirected yet + /* istanbul ignore else */ + if (request === self._currentRequest) { + // Report any write errors + /* istanbul ignore if */ + if (error) { + self.emit("error", error); + } + // Write the next buffer if there are still left + else if (i < buffers.length) { + var buffer = buffers[i++]; + /* istanbul ignore else */ + if (!request.finished) { + request.write(buffer.data, buffer.encoding, writeNext); + } + } + // End the request if `end` has been called on us + else if (self._ended) { + request.end(); + } + } + }()); + } +}; + +// Processes a response from the current native request +RedirectableRequest.prototype._processResponse = function (response) { + // Store the redirected response + var statusCode = response.statusCode; + if (this._options.trackRedirects) { + this._redirects.push({ + url: this._currentUrl, + headers: response.headers, + statusCode: statusCode, + }); + } + + // RFC7231§6.4: The 3xx (Redirection) class of status code indicates + // that further action needs to be taken by the user agent in order to + // fulfill the request. If a Location header field is provided, + // the user agent MAY automatically redirect its request to the URI + // referenced by the Location field value, + // even if the specific status code is not understood. + var location = response.headers.location; + if (location && this._options.followRedirects !== false && + statusCode >= 300 && statusCode < 400) { + // Abort the current request + abortRequest(this._currentRequest); + // Discard the remainder of the response to avoid waiting for data + response.destroy(); + + // RFC7231§6.4: A client SHOULD detect and intervene + // in cyclical redirections (i.e., "infinite" redirection loops). + if (++this._redirectCount > this._options.maxRedirects) { + this.emit("error", new TooManyRedirectsError()); + return; + } + + // RFC7231§6.4: Automatic redirection needs to done with + // care for methods not known to be safe, […] + // RFC7231§6.4.2–3: For historical reasons, a user agent MAY change + // the request method from POST to GET for the subsequent request. + if ((statusCode === 301 || statusCode === 302) && this._options.method === "POST" || + // RFC7231§6.4.4: The 303 (See Other) status code indicates that + // the server is redirecting the user agent to a different resource […] + // A user agent can perform a retrieval request targeting that URI + // (a GET or HEAD request if using HTTP) […] + (statusCode === 303) && !/^(?:GET|HEAD)$/.test(this._options.method)) { + this._options.method = "GET"; + // Drop a possible entity and headers related to it + this._requestBodyBuffers = []; + removeMatchingHeaders(/^content-/i, this._options.headers); + } + + // Drop the Host header, as the redirect might lead to a different host + var previousHostName = removeMatchingHeaders(/^host$/i, this._options.headers) || + url.parse(this._currentUrl).hostname; + + // Create the redirected request + var redirectUrl = url.resolve(this._currentUrl, location); + debug("redirecting to", redirectUrl); + this._isRedirect = true; + var redirectUrlParts = url.parse(redirectUrl); + Object.assign(this._options, redirectUrlParts); + + // Drop the Authorization header if redirecting to another host + if (redirectUrlParts.hostname !== previousHostName) { + removeMatchingHeaders(/^authorization$/i, this._options.headers); + } + + // Evaluate the beforeRedirect callback + if (typeof this._options.beforeRedirect === "function") { + var responseDetails = { headers: response.headers }; + try { + this._options.beforeRedirect.call(null, this._options, responseDetails); + } + catch (err) { + this.emit("error", err); + return; + } + this._sanitizeOptions(this._options); + } + + // Perform the redirected request + try { + this._performRequest(); + } + catch (cause) { + var error = new RedirectionError("Redirected request failed: " + cause.message); + error.cause = cause; + this.emit("error", error); + } + } + else { + // The response is not a redirect; return it as-is + response.responseUrl = this._currentUrl; + response.redirects = this._redirects; + this.emit("response", response); + + // Clean up + this._requestBodyBuffers = []; + } +}; + +// Wraps the key/value object of protocols with redirect functionality +function wrap(protocols) { + // Default settings + var exports = { + maxRedirects: 21, + maxBodyLength: 10 * 1024 * 1024, + }; + + // Wrap each protocol + var nativeProtocols = {}; + Object.keys(protocols).forEach(function (scheme) { + var protocol = scheme + ":"; + var nativeProtocol = nativeProtocols[protocol] = protocols[scheme]; + var wrappedProtocol = exports[scheme] = Object.create(nativeProtocol); + + // Executes a request, following redirects + function request(input, options, callback) { + // Parse parameters + if (typeof input === "string") { + var urlStr = input; + try { + input = urlToOptions(new URL(urlStr)); + } + catch (err) { + /* istanbul ignore next */ + input = url.parse(urlStr); + } + } + else if (URL && (input instanceof URL)) { + input = urlToOptions(input); + } + else { + callback = options; + options = input; + input = { protocol: protocol }; + } + if (typeof options === "function") { + callback = options; + options = null; + } + + // Set defaults + options = Object.assign({ + maxRedirects: exports.maxRedirects, + maxBodyLength: exports.maxBodyLength, + }, input, options); + options.nativeProtocols = nativeProtocols; + + assert.equal(options.protocol, protocol, "protocol mismatch"); + debug("options", options); + return new RedirectableRequest(options, callback); + } + + // Executes a GET request, following redirects + function get(input, options, callback) { + var wrappedRequest = wrappedProtocol.request(input, options, callback); + wrappedRequest.end(); + return wrappedRequest; + } + + // Expose the properties on the wrapped protocol + Object.defineProperties(wrappedProtocol, { + request: { value: request, configurable: true, enumerable: true, writable: true }, + get: { value: get, configurable: true, enumerable: true, writable: true }, + }); + }); + return exports; +} + +/* istanbul ignore next */ +function noop() { /* empty */ } + +// from https://github.com/nodejs/node/blob/master/lib/internal/url.js +function urlToOptions(urlObject) { + var options = { + protocol: urlObject.protocol, + hostname: urlObject.hostname.startsWith("[") ? + /* istanbul ignore next */ + urlObject.hostname.slice(1, -1) : + urlObject.hostname, + hash: urlObject.hash, + search: urlObject.search, + pathname: urlObject.pathname, + path: urlObject.pathname + urlObject.search, + href: urlObject.href, + }; + if (urlObject.port !== "") { + options.port = Number(urlObject.port); + } + return options; +} + +function removeMatchingHeaders(regex, headers) { + var lastValue; + for (var header in headers) { + if (regex.test(header)) { + lastValue = headers[header]; + delete headers[header]; + } + } + return lastValue; +} + +function createErrorType(code, defaultMessage) { + function CustomError(message) { + Error.captureStackTrace(this, this.constructor); + this.message = message || defaultMessage; + } + CustomError.prototype = new Error(); + CustomError.prototype.constructor = CustomError; + CustomError.prototype.name = "Error [" + code + "]"; + CustomError.prototype.code = code; + return CustomError; +} + +function abortRequest(request) { + for (var e = 0; e < events.length; e++) { + request.removeListener(events[e], eventHandlers[events[e]]); + } + request.on("error", noop); + request.abort(); +} + +// Exports +module.exports = wrap({ http: http, https: https }); +module.exports.wrap = wrap; + + +/***/ }), + +/***/ 167: +/***/ (function(module) { + +function webpackEmptyContext(req) { + if (typeof req === 'number' && __webpack_require__.m[req]) + return __webpack_require__(req); +try { return require(req) } +catch (e) { if (e.code !== 'MODULE_NOT_FOUND') throw e } +var e = new Error("Cannot find module '" + req + "'"); + e.code = 'MODULE_NOT_FOUND'; + throw e; +} +webpackEmptyContext.keys = function() { return []; }; +webpackEmptyContext.resolve = webpackEmptyContext; +module.exports = webpackEmptyContext; +webpackEmptyContext.id = 167; + +/***/ }), + +/***/ 186: +/***/ (function(module) { + +"use strict"; +/* eslint-disable yoda */ + + +const isFullwidthCodePoint = codePoint => { + if (Number.isNaN(codePoint)) { + return false; + } + + // Code points are derived from: + // http://www.unix.org/Public/UNIDATA/EastAsianWidth.txt + if ( + codePoint >= 0x1100 && ( + codePoint <= 0x115F || // Hangul Jamo + codePoint === 0x2329 || // LEFT-POINTING ANGLE BRACKET + codePoint === 0x232A || // RIGHT-POINTING ANGLE BRACKET + // CJK Radicals Supplement .. Enclosed CJK Letters and Months + (0x2E80 <= codePoint && codePoint <= 0x3247 && codePoint !== 0x303F) || + // Enclosed CJK Letters and Months .. CJK Unified Ideographs Extension A + (0x3250 <= codePoint && codePoint <= 0x4DBF) || + // CJK Unified Ideographs .. Yi Radicals + (0x4E00 <= codePoint && codePoint <= 0xA4C6) || + // Hangul Jamo Extended-A + (0xA960 <= codePoint && codePoint <= 0xA97C) || + // Hangul Syllables + (0xAC00 <= codePoint && codePoint <= 0xD7A3) || + // CJK Compatibility Ideographs + (0xF900 <= codePoint && codePoint <= 0xFAFF) || + // Vertical Forms + (0xFE10 <= codePoint && codePoint <= 0xFE19) || + // CJK Compatibility Forms .. Small Form Variants + (0xFE30 <= codePoint && codePoint <= 0xFE6B) || + // Halfwidth and Fullwidth Forms + (0xFF01 <= codePoint && codePoint <= 0xFF60) || + (0xFFE0 <= codePoint && codePoint <= 0xFFE6) || + // Kana Supplement + (0x1B000 <= codePoint && codePoint <= 0x1B001) || + // Enclosed Ideographic Supplement + (0x1F200 <= codePoint && codePoint <= 0x1F251) || + // CJK Unified Ideographs Extension B .. Tertiary Ideographic Plane + (0x20000 <= codePoint && codePoint <= 0x3FFFD) + ) + ) { + return true; + } + + return false; +}; + +module.exports = isFullwidthCodePoint; +module.exports.default = isFullwidthCodePoint; + + +/***/ }), + +/***/ 201: +/***/ (function(module) { + +"use strict"; + + +/** + * A `Cancel` is an object that is thrown when an operation is canceled. + * + * @class + * @param {string=} message The message. + */ +function Cancel(message) { + this.message = message; +} + +Cancel.prototype.toString = function toString() { + return 'Cancel' + (this.message ? ': ' + this.message : ''); +}; + +Cancel.prototype.__CANCEL__ = true; + +module.exports = Cancel; + + +/***/ }), + +/***/ 211: +/***/ (function(module) { + +module.exports = require("https"); + +/***/ }), + +/***/ 236: +/***/ (function(module, __unusedexports, __webpack_require__) { + +"use strict"; + +const ansiRegex = __webpack_require__(716); + +module.exports = string => typeof string === 'string' ? string.replace(ansiRegex(), '') : string; + + +/***/ }), + +/***/ 244: +/***/ (function(module, __unusedexports, __webpack_require__) { + +"use strict"; + + +var utils = __webpack_require__(318); + +module.exports = ( + utils.isStandardBrowserEnv() ? + + // Standard browser envs have full support of the APIs needed to test + // whether the request URL is of the same origin as current location. + (function standardBrowserEnv() { + var msie = /(msie|trident)/i.test(navigator.userAgent); + var urlParsingNode = document.createElement('a'); + var originURL; + + /** + * Parse a URL to discover it's components + * + * @param {String} url The URL to be parsed + * @returns {Object} + */ + function resolveURL(url) { + var href = url; + + if (msie) { + // IE needs attribute set twice to normalize properties + urlParsingNode.setAttribute('href', href); + href = urlParsingNode.href; + } + + urlParsingNode.setAttribute('href', href); + + // urlParsingNode provides the UrlUtils interface - http://url.spec.whatwg.org/#urlutils + return { + href: urlParsingNode.href, + protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '', + host: urlParsingNode.host, + search: urlParsingNode.search ? urlParsingNode.search.replace(/^\?/, '') : '', + hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '', + hostname: urlParsingNode.hostname, + port: urlParsingNode.port, + pathname: (urlParsingNode.pathname.charAt(0) === '/') ? + urlParsingNode.pathname : + '/' + urlParsingNode.pathname + }; + } + + originURL = resolveURL(window.location.href); + + /** + * Determine if a URL shares the same origin as the current location + * + * @param {String} requestURL The URL to test + * @returns {boolean} True if URL shares the same origin, otherwise false + */ + return function isURLSameOrigin(requestURL) { + var parsed = (utils.isString(requestURL)) ? resolveURL(requestURL) : requestURL; + return (parsed.protocol === originURL.protocol && + parsed.host === originURL.host); + }; + })() : + + // Non standard browser envs (web workers, react-native) lack needed support. + (function nonStandardBrowserEnv() { + return function isURLSameOrigin() { + return true; + }; + })() +); + + +/***/ }), + +/***/ 246: +/***/ (function(module) { + +"use strict"; + + +/** + * Determines whether the payload is an error thrown by Axios + * + * @param {*} payload The value to test + * @returns {boolean} True if the payload is an error thrown by Axios, otherwise false + */ +module.exports = function isAxiosError(payload) { + return (typeof payload === 'object') && (payload.isAxiosError === true); +}; + + +/***/ }), + +/***/ 258: +/***/ (function(module, __unusedexports, __webpack_require__) { + +"use strict"; + +// classic singleton yargs API, to use yargs +// without running as a singleton do: +// require('yargs/yargs')(process.argv.slice(2)) +const {Yargs, processArgv} = __webpack_require__(728); + +Argv(processArgv.hideBin(process.argv)); + +module.exports = Argv; + +function Argv(processArgs, cwd) { + const argv = Yargs(processArgs, cwd, __webpack_require__(907)); + singletonify(argv); + return argv; +} + +/* Hack an instance of Argv with process.argv into Argv + so people can do + require('yargs')(['--beeble=1','-z','zizzle']).argv + to parse a list of args and + require('yargs').argv + to get a parsed version of process.argv. +*/ +function singletonify(inst) { + Object.keys(inst).forEach(key => { + if (key === 'argv') { + Argv.__defineGetter__(key, inst.__lookupGetter__(key)); + } else if (typeof inst[key] === 'function') { + Argv[key] = inst[key].bind(inst); + } else { + Argv.__defineGetter__('$0', () => { + return inst.$0; + }); + Argv.__defineGetter__('parsed', () => { + return inst.parsed; + }); + } + }); +} + + +/***/ }), + +/***/ 277: +/***/ (function(module) { + +module.exports = require("path"); + +/***/ }), + +/***/ 290: +/***/ (function(module, __unusedexports, __webpack_require__) { + +"use strict"; + + +const align = { + right: alignRight, + center: alignCenter +}; +const top = 0; +const right = 1; +const bottom = 2; +const left = 3; +class UI { + constructor(opts) { + var _a; + this.width = opts.width; + this.wrap = (_a = opts.wrap) !== null && _a !== void 0 ? _a : true; + this.rows = []; + } + span(...args) { + const cols = this.div(...args); + cols.span = true; + } + resetOutput() { + this.rows = []; + } + div(...args) { + if (args.length === 0) { + this.div(''); + } + if (this.wrap && this.shouldApplyLayoutDSL(...args) && typeof args[0] === 'string') { + return this.applyLayoutDSL(args[0]); + } + const cols = args.map(arg => { + if (typeof arg === 'string') { + return this.colFromString(arg); + } + return arg; + }); + this.rows.push(cols); + return cols; + } + shouldApplyLayoutDSL(...args) { + return args.length === 1 && typeof args[0] === 'string' && + /[\t\n]/.test(args[0]); + } + applyLayoutDSL(str) { + const rows = str.split('\n').map(row => row.split('\t')); + let leftColumnWidth = 0; + // simple heuristic for layout, make sure the + // second column lines up along the left-hand. + // don't allow the first column to take up more + // than 50% of the screen. + rows.forEach(columns => { + if (columns.length > 1 && mixin.stringWidth(columns[0]) > leftColumnWidth) { + leftColumnWidth = Math.min(Math.floor(this.width * 0.5), mixin.stringWidth(columns[0])); + } + }); + // generate a table: + // replacing ' ' with padding calculations. + // using the algorithmically generated width. + rows.forEach(columns => { + this.div(...columns.map((r, i) => { + return { + text: r.trim(), + padding: this.measurePadding(r), + width: (i === 0 && columns.length > 1) ? leftColumnWidth : undefined + }; + })); + }); + return this.rows[this.rows.length - 1]; + } + colFromString(text) { + return { + text, + padding: this.measurePadding(text) + }; + } + measurePadding(str) { + // measure padding without ansi escape codes + const noAnsi = mixin.stripAnsi(str); + return [0, noAnsi.match(/\s*$/)[0].length, 0, noAnsi.match(/^\s*/)[0].length]; + } + toString() { + const lines = []; + this.rows.forEach(row => { + this.rowToString(row, lines); + }); + // don't display any lines with the + // hidden flag set. + return lines + .filter(line => !line.hidden) + .map(line => line.text) + .join('\n'); + } + rowToString(row, lines) { + this.rasterize(row).forEach((rrow, r) => { + let str = ''; + rrow.forEach((col, c) => { + const { width } = row[c]; // the width with padding. + const wrapWidth = this.negatePadding(row[c]); // the width without padding. + let ts = col; // temporary string used during alignment/padding. + if (wrapWidth > mixin.stringWidth(col)) { + ts += ' '.repeat(wrapWidth - mixin.stringWidth(col)); + } + // align the string within its column. + if (row[c].align && row[c].align !== 'left' && this.wrap) { + const fn = align[row[c].align]; + ts = fn(ts, wrapWidth); + if (mixin.stringWidth(ts) < wrapWidth) { + ts += ' '.repeat((width || 0) - mixin.stringWidth(ts) - 1); + } + } + // apply border and padding to string. + const padding = row[c].padding || [0, 0, 0, 0]; + if (padding[left]) { + str += ' '.repeat(padding[left]); + } + str += addBorder(row[c], ts, '| '); + str += ts; + str += addBorder(row[c], ts, ' |'); + if (padding[right]) { + str += ' '.repeat(padding[right]); + } + // if prior row is span, try to render the + // current row on the prior line. + if (r === 0 && lines.length > 0) { + str = this.renderInline(str, lines[lines.length - 1]); + } + }); + // remove trailing whitespace. + lines.push({ + text: str.replace(/ +$/, ''), + span: row.span + }); + }); + return lines; + } + // if the full 'source' can render in + // the target line, do so. + renderInline(source, previousLine) { + const match = source.match(/^ */); + const leadingWhitespace = match ? match[0].length : 0; + const target = previousLine.text; + const targetTextWidth = mixin.stringWidth(target.trimRight()); + if (!previousLine.span) { + return source; + } + // if we're not applying wrapping logic, + // just always append to the span. + if (!this.wrap) { + previousLine.hidden = true; + return target + source; + } + if (leadingWhitespace < targetTextWidth) { + return source; + } + previousLine.hidden = true; + return target.trimRight() + ' '.repeat(leadingWhitespace - targetTextWidth) + source.trimLeft(); + } + rasterize(row) { + const rrows = []; + const widths = this.columnWidths(row); + let wrapped; + // word wrap all columns, and create + // a data-structure that is easy to rasterize. + row.forEach((col, c) => { + // leave room for left and right padding. + col.width = widths[c]; + if (this.wrap) { + wrapped = mixin.wrap(col.text, this.negatePadding(col), { hard: true }).split('\n'); + } + else { + wrapped = col.text.split('\n'); + } + if (col.border) { + wrapped.unshift('.' + '-'.repeat(this.negatePadding(col) + 2) + '.'); + wrapped.push("'" + '-'.repeat(this.negatePadding(col) + 2) + "'"); + } + // add top and bottom padding. + if (col.padding) { + wrapped.unshift(...new Array(col.padding[top] || 0).fill('')); + wrapped.push(...new Array(col.padding[bottom] || 0).fill('')); + } + wrapped.forEach((str, r) => { + if (!rrows[r]) { + rrows.push([]); + } + const rrow = rrows[r]; + for (let i = 0; i < c; i++) { + if (rrow[i] === undefined) { + rrow.push(''); + } + } + rrow.push(str); + }); + }); + return rrows; + } + negatePadding(col) { + let wrapWidth = col.width || 0; + if (col.padding) { + wrapWidth -= (col.padding[left] || 0) + (col.padding[right] || 0); + } + if (col.border) { + wrapWidth -= 4; + } + return wrapWidth; + } + columnWidths(row) { + if (!this.wrap) { + return row.map(col => { + return col.width || mixin.stringWidth(col.text); + }); + } + let unset = row.length; + let remainingWidth = this.width; + // column widths can be set in config. + const widths = row.map(col => { + if (col.width) { + unset--; + remainingWidth -= col.width; + return col.width; + } + return undefined; + }); + // any unset widths should be calculated. + const unsetWidth = unset ? Math.floor(remainingWidth / unset) : 0; + return widths.map((w, i) => { + if (w === undefined) { + return Math.max(unsetWidth, _minWidth(row[i])); + } + return w; + }); + } +} +function addBorder(col, ts, style) { + if (col.border) { + if (/[.']-+[.']/.test(ts)) { + return ''; + } + if (ts.trim().length !== 0) { + return style; + } + return ' '; + } + return ''; +} +// calculates the minimum width of +// a column, based on padding preferences. +function _minWidth(col) { + const padding = col.padding || []; + const minWidth = 1 + (padding[left] || 0) + (padding[right] || 0); + if (col.border) { + return minWidth + 4; + } + return minWidth; +} +function getWindowWidth() { + /* istanbul ignore next: depends on terminal */ + if (typeof process === 'object' && process.stdout && process.stdout.columns) { + return process.stdout.columns; + } + return 80; +} +function alignRight(str, width) { + str = str.trim(); + const strWidth = mixin.stringWidth(str); + if (strWidth < width) { + return ' '.repeat(width - strWidth) + str; + } + return str; +} +function alignCenter(str, width) { + str = str.trim(); + const strWidth = mixin.stringWidth(str); + /* istanbul ignore next */ + if (strWidth >= width) { + return str; + } + return ' '.repeat((width - strWidth) >> 1) + str; +} +let mixin; +function cliui(opts, _mixin) { + mixin = _mixin; + return new UI({ + width: (opts === null || opts === void 0 ? void 0 : opts.width) || getWindowWidth(), + wrap: opts === null || opts === void 0 ? void 0 : opts.wrap + }); +} + +// Bootstrap cliui with CommonJS dependencies: +const stringWidth = __webpack_require__(987); +const stripAnsi = __webpack_require__(236); +const wrap = __webpack_require__(957); +function ui(opts) { + return cliui(opts, { + stringWidth, + stripAnsi, + wrap + }); +} + +module.exports = ui; + + +/***/ }), + +/***/ 313: +/***/ (function(module) { + +"use strict"; + + +module.exports = function () { + // https://mths.be/emoji + return 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+}; + + +/***/ }), + +/***/ 318: +/***/ (function(module, __unusedexports, __webpack_require__) { + +"use strict"; + + +var bind = __webpack_require__(825); + +/*global toString:true*/ + +// utils is a library of generic helper functions non-specific to axios + +var toString = Object.prototype.toString; + +/** + * Determine if a value is an Array + * + * @param {Object} val The value to test + * @returns {boolean} True if value is an Array, otherwise false + */ +function isArray(val) { + return toString.call(val) === '[object Array]'; +} + +/** + * Determine if a value is undefined + * + * @param {Object} val The value to test + * @returns {boolean} True if the value is undefined, otherwise false + */ +function isUndefined(val) { + return typeof val === 'undefined'; +} + +/** + * Determine if a value is a Buffer + * + * @param {Object} val The value to test + * @returns {boolean} True if value is a Buffer, otherwise false + */ +function isBuffer(val) { + return val !== null && !isUndefined(val) && val.constructor !== null && !isUndefined(val.constructor) + && typeof val.constructor.isBuffer === 'function' && val.constructor.isBuffer(val); +} + +/** + * Determine if a value is an ArrayBuffer + * + * @param {Object} val The value to test + * @returns {boolean} True if value is an ArrayBuffer, otherwise false + */ +function isArrayBuffer(val) { + return toString.call(val) === '[object ArrayBuffer]'; +} + +/** + * Determine if a value is a FormData + * + * @param {Object} val The value to test + * @returns {boolean} True if value is an FormData, otherwise false + */ +function isFormData(val) { + return (typeof FormData !== 'undefined') && (val instanceof FormData); +} + +/** + * Determine if a value is a view on an ArrayBuffer + * + * @param {Object} val The value to test + * @returns {boolean} True if value is a view on an ArrayBuffer, otherwise false + */ +function isArrayBufferView(val) { + var result; + if ((typeof ArrayBuffer !== 'undefined') && (ArrayBuffer.isView)) { + result = ArrayBuffer.isView(val); + } else { + result = (val) && (val.buffer) && (val.buffer instanceof ArrayBuffer); + } + return result; +} + +/** + * Determine if a value is a String + * + * @param {Object} val The value to test + * @returns {boolean} True if value is a String, otherwise false + */ +function isString(val) { + return typeof val === 'string'; +} + +/** + * Determine if a value is a Number + * + * @param {Object} val The value to test + * @returns {boolean} True if value is a Number, otherwise false + */ +function isNumber(val) { + return typeof val === 'number'; +} + +/** + * Determine if a value is an Object + * + * @param {Object} val The value to test + * @returns {boolean} True if value is an Object, otherwise false + */ +function isObject(val) { + return val !== null && typeof val === 'object'; +} + +/** + * Determine if a value is a plain Object + * + * @param {Object} val The value to test + * @return {boolean} True if value is a plain Object, otherwise false + */ +function isPlainObject(val) { + if (toString.call(val) !== '[object Object]') { + return false; + } + + var prototype = Object.getPrototypeOf(val); + return prototype === null || prototype === Object.prototype; +} + +/** + * Determine if a value is a Date + * + * @param {Object} val The value to test + * @returns {boolean} True if value is a Date, otherwise false + */ +function isDate(val) { + return toString.call(val) === '[object Date]'; +} + +/** + * Determine if a value is a File + * + * @param {Object} val The value to test + * @returns {boolean} True if value is a File, otherwise false + */ +function isFile(val) { + return toString.call(val) === '[object File]'; +} + +/** + * Determine if a value is a Blob + * + * @param {Object} val The value to test + * @returns {boolean} True if value is a Blob, otherwise false + */ +function isBlob(val) { + return toString.call(val) === '[object Blob]'; +} + +/** + * Determine if a value is a Function + * + * @param {Object} val The value to test + * @returns {boolean} True if value is a Function, otherwise false + */ +function isFunction(val) { + return toString.call(val) === '[object Function]'; +} + +/** + * Determine if a value is a Stream + * + * @param {Object} val The value to test + * @returns {boolean} True if value is a Stream, otherwise false + */ +function isStream(val) { + return isObject(val) && isFunction(val.pipe); +} + +/** + * Determine if a value is a URLSearchParams object + * + * @param {Object} val The value to test + * @returns {boolean} True if value is a URLSearchParams object, otherwise false + */ +function isURLSearchParams(val) { + return typeof URLSearchParams !== 'undefined' && val instanceof URLSearchParams; +} + +/** + * Trim excess whitespace off the beginning and end of a string + * + * @param {String} str The String to trim + * @returns {String} The String freed of excess whitespace + */ +function trim(str) { + return str.replace(/^\s*/, '').replace(/\s*$/, ''); +} + +/** + * Determine if we're running in a standard browser environment + * + * This allows axios to run in a web worker, and react-native. + * Both environments support XMLHttpRequest, but not fully standard globals. + * + * web workers: + * typeof window -> undefined + * typeof document -> undefined + * + * react-native: + * navigator.product -> 'ReactNative' + * nativescript + * navigator.product -> 'NativeScript' or 'NS' + */ +function isStandardBrowserEnv() { + if (typeof navigator !== 'undefined' && (navigator.product === 'ReactNative' || + navigator.product === 'NativeScript' || + navigator.product === 'NS')) { + return false; + } + return ( + typeof window !== 'undefined' && + typeof document !== 'undefined' + ); +} + +/** + * Iterate over an Array or an Object invoking a function for each item. + * + * If `obj` is an Array callback will be called passing + * the value, index, and complete array for each item. + * + * If 'obj' is an Object callback will be called passing + * the value, key, and complete object for each property. + * + * @param {Object|Array} obj The object to iterate + * @param {Function} fn The callback to invoke for each item + */ +function forEach(obj, fn) { + // Don't bother if no value provided + if (obj === null || typeof obj === 'undefined') { + return; + } + + // Force an array if not already something iterable + if (typeof obj !== 'object') { + /*eslint no-param-reassign:0*/ + obj = [obj]; + } + + if (isArray(obj)) { + // Iterate over array values + for (var i = 0, l = obj.length; i < l; i++) { + fn.call(null, obj[i], i, obj); + } + } else { + // Iterate over object keys + for (var key in obj) { + if (Object.prototype.hasOwnProperty.call(obj, key)) { + fn.call(null, obj[key], key, obj); + } + } + } +} + +/** + * Accepts varargs expecting each argument to be an object, then + * immutably merges the properties of each object and returns result. + * + * When multiple objects contain the same key the later object in + * the arguments list will take precedence. + * + * Example: + * + * ```js + * var result = merge({foo: 123}, {foo: 456}); + * console.log(result.foo); // outputs 456 + * ``` + * + * @param {Object} obj1 Object to merge + * @returns {Object} Result of all merge properties + */ +function merge(/* obj1, obj2, obj3, ... */) { + var result = {}; + function assignValue(val, key) { + if (isPlainObject(result[key]) && isPlainObject(val)) { + result[key] = merge(result[key], val); + } else if (isPlainObject(val)) { + result[key] = merge({}, val); + } else if (isArray(val)) { + result[key] = val.slice(); + } else { + result[key] = val; + } + } + + for (var i = 0, l = arguments.length; i < l; i++) { + forEach(arguments[i], assignValue); + } + return result; +} + +/** + * Extends object a by mutably adding to it the properties of object b. + * + * @param {Object} a The object to be extended + * @param {Object} b The object to copy properties from + * @param {Object} thisArg The object to bind function to + * @return {Object} The resulting value of object a + */ +function extend(a, b, thisArg) { + forEach(b, function assignValue(val, key) { + if (thisArg && typeof val === 'function') { + a[key] = bind(val, thisArg); + } else { + a[key] = val; + } + }); + return a; +} + +/** + * Remove byte order marker. This catches EF BB BF (the UTF-8 BOM) + * + * @param {string} content with BOM + * @return {string} content value without BOM + */ +function stripBOM(content) { + if (content.charCodeAt(0) === 0xFEFF) { + content = content.slice(1); + } + return content; +} + +module.exports = { + isArray: isArray, + isArrayBuffer: isArrayBuffer, + isBuffer: isBuffer, + isFormData: isFormData, + isArrayBufferView: isArrayBufferView, + isString: isString, + isNumber: isNumber, + isObject: isObject, + isPlainObject: isPlainObject, + isUndefined: isUndefined, + isDate: isDate, + isFile: isFile, + isBlob: isBlob, + isFunction: isFunction, + isStream: isStream, + isURLSearchParams: isURLSearchParams, + isStandardBrowserEnv: isStandardBrowserEnv, + forEach: forEach, + merge: merge, + extend: extend, + trim: trim, + stripBOM: stripBOM +}; + + +/***/ }), + +/***/ 357: +/***/ (function(module) { + +module.exports = require("assert"); + +/***/ }), + +/***/ 366: +/***/ (function(module, __unusedexports, __webpack_require__) { + +module.exports = __webpack_require__(847); + +/***/ }), + +/***/ 413: +/***/ (function(module) { + +module.exports = require("stream"); + +/***/ }), + +/***/ 456: +/***/ (function(module, __unusedexports, __webpack_require__) { + +var debug; + +module.exports = function () { + if (!debug) { + try { + /* eslint global-require: off */ + debug = __webpack_require__(704)("follow-redirects"); + } + catch (error) { + debug = function () { /* */ }; + } + } + debug.apply(null, arguments); +}; + + +/***/ }), + +/***/ 462: +/***/ (function(__unusedmodule, __unusedexports, __webpack_require__) { + +const axios = __webpack_require__(366); +const _ = __webpack_require__(975); +const { argv } = __webpack_require__(258); + +const payload = {}; + +if (process.env.INPUT_MSGTYPE === 'text') { + + payload.msgtype = process.env.INPUT_MSGTYPE; + payload.text = { + content: process.env.INPUT_CONTENT, + }; + + if (process.env.INPUT_MENTIONED_LIST) { + let mentioned_list; + try { + mentioned_list = JSON.parse(process.env.INPUT_MENTIONED_LIST); + } catch (error) { + mentioned_list = []; + } + payload.text.mentioned_list = mentioned_list; + } + + if (process.env.INPUT_MENTIONED_MOBILE_LIST) { + let mentioned_mobile_list; + try { + mentioned_mobile_list = JSON.parse(process.env.INPUT_MENTIONED_MOBILE_LIST); + } catch (error) { + mentioned_mobile_list = []; + } + payload.text.mentioned_mobile_list = mentioned_mobile_list; + } + +} + +if (process.env.INPUT_MSGTYPE === 'markdown') { + + payload.msgtype = process.env.INPUT_MSGTYPE; + payload.markdown = { + content: process.env.INPUT_CONTENT, + }; + +} + +if (process.env.INPUT_MSGTYPE === 'image') { + + payload.msgtype = process.env.INPUT_MSGTYPE; + payload.image = { + base64: process.env.INPUT_BASE64, + md5: process.env.INPUT_MD5, + }; + +} + +if (process.env.INPUT_MSGTYPE === 'news') { + + payload.msgtype = process.env.INPUT_MSGTYPE; + + let articles; + try { + articles = JSON.parse(process.env.INPUT_ARTICLES); + } catch (error) { + articles = []; + } + payload.news = { + articles, + }; + +} + +if (process.env.INPUT_MSGTYPE === 'file') { + + payload.msgtype = process.env.INPUT_MSGTYPE; + payload.file = { + media_id: process.env.INPUT_MEDIA_ID, + }; + +} + +console.log('The message content in JSON format...'); +console.log(JSON.stringify(payload)); + +const url = process.env.WECHAT_WORK_BOT_WEBHOOK; + +(async () => { + console.log('Sending message ...'); + await axios.post(url, JSON.stringify(payload), { + headers: { + 'Content-Type': 'application/json' + }, + }); + console.log('Message sent Success! Shutting down ...'); + process.exit(0); +})() + .catch((err) => { + console.error(err.message); + console.error('Message sent error:', err.response.data); + process.exit(1); + }); + + +/***/ }), + +/***/ 464: +/***/ (function(module, __unusedexports, __webpack_require__) { + +"use strict"; + + +var Cancel = __webpack_require__(201); + +/** + * A `CancelToken` is an object that can be used to request cancellation of an operation. + * + * @class + * @param {Function} executor The executor function. + */ +function CancelToken(executor) { + if (typeof executor !== 'function') { + throw new TypeError('executor must be a function.'); + } + + var resolvePromise; + this.promise = new Promise(function promiseExecutor(resolve) { + resolvePromise = resolve; + }); + + var token = this; + executor(function cancel(message) { + if (token.reason) { + // Cancellation has already been requested + return; + } + + token.reason = new Cancel(message); + resolvePromise(token.reason); + }); +} + +/** + * Throws a `Cancel` if cancellation has been requested. + */ +CancelToken.prototype.throwIfRequested = function throwIfRequested() { + if (this.reason) { + throw this.reason; + } +}; + +/** + * Returns an object that contains a new `CancelToken` and a function that, when called, + * cancels the `CancelToken`. + */ +CancelToken.source = function source() { + var cancel; + var token = new CancelToken(function executor(c) { + cancel = c; + }); + return { + token: token, + cancel: cancel + }; +}; + +module.exports = CancelToken; + + +/***/ }), + +/***/ 465: +/***/ (function(module, __unusedexports, __webpack_require__) { + +"use strict"; + + +var utils = __webpack_require__(318); +var transformData = __webpack_require__(849); +var isCancel = __webpack_require__(752); +var defaults = __webpack_require__(82); + +/** + * Throws a `Cancel` if cancellation has been requested. + */ +function throwIfCancellationRequested(config) { + if (config.cancelToken) { + config.cancelToken.throwIfRequested(); + } +} + +/** + * Dispatch a request to the server using the configured adapter. + * + * @param {object} config The config that is to be used for the request + * @returns {Promise} The Promise to be fulfilled + */ +module.exports = function dispatchRequest(config) { + throwIfCancellationRequested(config); + + // Ensure headers exist + config.headers = config.headers || {}; + + // Transform request data + config.data = transformData( + config.data, + config.headers, + config.transformRequest + ); + + // Flatten headers + config.headers = utils.merge( + config.headers.common || {}, + config.headers[config.method] || {}, + config.headers + ); + + utils.forEach( + ['delete', 'get', 'head', 'post', 'put', 'patch', 'common'], + function cleanHeaderConfig(method) { + delete config.headers[method]; + } + ); + + var adapter = config.adapter || defaults.adapter; + + return adapter(config).then(function onAdapterResolution(response) { + throwIfCancellationRequested(config); + + // Transform response data + response.data = transformData( + response.data, + response.headers, + config.transformResponse + ); + + return response; + }, function onAdapterRejection(reason) { + if (!isCancel(reason)) { + throwIfCancellationRequested(config); + + // Transform response data + if (reason && reason.response) { + reason.response.data = transformData( + reason.response.data, + reason.response.headers, + config.transformResponse + ); + } + } + + return Promise.reject(reason); + }); +}; + + +/***/ }), + +/***/ 481: +/***/ (function(module) { + +module.exports = {"_args":[["axios@0.21.1","/Users/zhoufan/Documents/workshop/code/action-wechat-work"]],"_from":"axios@0.21.1","_id":"axios@0.21.1","_inBundle":false,"_integrity":"sha512-dKQiRHxGD9PPRIUNIWvZhPTPpl1rf/OxTYKsqKUDjBwYylTvV7SjSHJb9ratfyzM6wCdLCOYLzs73qpg5c4iGA==","_location":"/axios","_phantomChildren":{},"_requested":{"type":"version","registry":true,"raw":"axios@0.21.1","name":"axios","escapedName":"axios","rawSpec":"0.21.1","saveSpec":null,"fetchSpec":"0.21.1"},"_requiredBy":["/"],"_resolved":"https://registry.npmjs.org/axios/-/axios-0.21.1.tgz","_spec":"0.21.1","_where":"/Users/zhoufan/Documents/workshop/code/action-wechat-work","author":{"name":"Matt Zabriskie"},"browser":{"./lib/adapters/http.js":"./lib/adapters/xhr.js"},"bugs":{"url":"https://github.com/axios/axios/issues"},"bundlesize":[{"path":"./dist/axios.min.js","threshold":"5kB"}],"dependencies":{"follow-redirects":"^1.10.0"},"description":"Promise based HTTP client for the browser and node.js","devDependencies":{"bundlesize":"^0.17.0","coveralls":"^3.0.0","es6-promise":"^4.2.4","grunt":"^1.0.2","grunt-banner":"^0.6.0","grunt-cli":"^1.2.0","grunt-contrib-clean":"^1.1.0","grunt-contrib-watch":"^1.0.0","grunt-eslint":"^20.1.0","grunt-karma":"^2.0.0","grunt-mocha-test":"^0.13.3","grunt-ts":"^6.0.0-beta.19","grunt-webpack":"^1.0.18","istanbul-instrumenter-loader":"^1.0.0","jasmine-core":"^2.4.1","karma":"^1.3.0","karma-chrome-launcher":"^2.2.0","karma-coverage":"^1.1.1","karma-firefox-launcher":"^1.1.0","karma-jasmine":"^1.1.1","karma-jasmine-ajax":"^0.1.13","karma-opera-launcher":"^1.0.0","karma-safari-launcher":"^1.0.0","karma-sauce-launcher":"^1.2.0","karma-sinon":"^1.0.5","karma-sourcemap-loader":"^0.3.7","karma-webpack":"^1.7.0","load-grunt-tasks":"^3.5.2","minimist":"^1.2.0","mocha":"^5.2.0","sinon":"^4.5.0","typescript":"^2.8.1","url-search-params":"^0.10.0","webpack":"^1.13.1","webpack-dev-server":"^1.14.1"},"homepage":"https://github.com/axios/axios","jsdelivr":"dist/axios.min.js","keywords":["xhr","http","ajax","promise","node"],"license":"MIT","main":"index.js","name":"axios","repository":{"type":"git","url":"git+https://github.com/axios/axios.git"},"scripts":{"build":"NODE_ENV=production grunt build","coveralls":"cat coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js","examples":"node ./examples/server.js","fix":"eslint --fix lib/**/*.js","postversion":"git push && git push --tags","preversion":"npm test","start":"node ./sandbox/server.js","test":"grunt test && bundlesize","version":"npm run build && grunt version && git add -A dist && git add CHANGELOG.md bower.json package.json"},"typings":"./index.d.ts","unpkg":"dist/axios.min.js","version":"0.21.1"}; + +/***/ }), + +/***/ 535: +/***/ (function(module, __unusedexports, __webpack_require__) { + +const conversions = __webpack_require__(29); +const route = __webpack_require__(639); + +const convert = {}; + +const models = Object.keys(conversions); + +function wrapRaw(fn) { + const wrappedFn = function (...args) { + const arg0 = args[0]; + if (arg0 === undefined || arg0 === null) { + return arg0; + } + + if (arg0.length > 1) { + args = arg0; + } + + return fn(args); + }; + + // Preserve .conversion property if there is one + if ('conversion' in fn) { + wrappedFn.conversion = fn.conversion; + } + + return wrappedFn; +} + +function wrapRounded(fn) { + const wrappedFn = function (...args) { + const arg0 = args[0]; + + if (arg0 === undefined || arg0 === null) { + return arg0; + } + + if (arg0.length > 1) { + args = arg0; + } + + const result = fn(args); + + // We're assuming the result is an array here. + // see notice in conversions.js; don't use box types + // in conversion functions. + if (typeof result === 'object') { + for (let len = result.length, i = 0; i < len; i++) { + result[i] = Math.round(result[i]); + } + } + + return result; + }; + + // Preserve .conversion property if there is one + if ('conversion' in fn) { + wrappedFn.conversion = fn.conversion; + } + + return wrappedFn; +} + +models.forEach(fromModel => { + convert[fromModel] = {}; + + Object.defineProperty(convert[fromModel], 'channels', {value: conversions[fromModel].channels}); + Object.defineProperty(convert[fromModel], 'labels', {value: conversions[fromModel].labels}); + + const routes = route(fromModel); + const routeModels = Object.keys(routes); + + routeModels.forEach(toModel => { + const fn = routes[toModel]; + + convert[fromModel][toModel] = wrapRounded(fn); + convert[fromModel][toModel].raw = wrapRaw(fn); + }); +}); + +module.exports = convert; + + +/***/ }), + +/***/ 536: +/***/ (function(module, __unusedexports, __webpack_require__) { + +"use strict"; + + +var utils = __webpack_require__(318); +var buildURL = __webpack_require__(87); +var InterceptorManager = __webpack_require__(622); +var dispatchRequest = __webpack_require__(465); +var mergeConfig = __webpack_require__(781); + +/** + * Create a new instance of Axios + * + * @param {Object} instanceConfig The default config for the instance + */ +function Axios(instanceConfig) { + this.defaults = instanceConfig; + this.interceptors = { + request: new InterceptorManager(), + response: new InterceptorManager() + }; +} + +/** + * Dispatch a request + * + * @param {Object} config The config specific for this request (merged with this.defaults) + */ +Axios.prototype.request = function request(config) { + /*eslint no-param-reassign:0*/ + // Allow for axios('example/url'[, config]) a la fetch API + if (typeof config === 'string') { + config = arguments[1] || {}; + config.url = arguments[0]; + } else { + config = config || {}; + } + + config = mergeConfig(this.defaults, config); + + // Set config.method + if (config.method) { + config.method = config.method.toLowerCase(); + } else if (this.defaults.method) { + config.method = this.defaults.method.toLowerCase(); + } else { + config.method = 'get'; + } + + // Hook up interceptors middleware + var chain = [dispatchRequest, undefined]; + var promise = Promise.resolve(config); + + this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) { + chain.unshift(interceptor.fulfilled, interceptor.rejected); + }); + + this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) { + chain.push(interceptor.fulfilled, interceptor.rejected); + }); + + while (chain.length) { + promise = promise.then(chain.shift(), chain.shift()); + } + + return promise; +}; + +Axios.prototype.getUri = function getUri(config) { + config = mergeConfig(this.defaults, config); + return buildURL(config.url, config.params, config.paramsSerializer).replace(/^\?/, ''); +}; + +// Provide aliases for supported request methods +utils.forEach(['delete', 'get', 'head', 'options'], function forEachMethodNoData(method) { + /*eslint func-names:0*/ + Axios.prototype[method] = function(url, config) { + return this.request(mergeConfig(config || {}, { + method: method, + url: url, + data: (config || {}).data + })); + }; +}); + +utils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) { + /*eslint func-names:0*/ + Axios.prototype[method] = function(url, data, config) { + return this.request(mergeConfig(config || {}, { + method: method, + url: url, + data: data + })); + }; +}); + +module.exports = Axios; + + +/***/ }), + +/***/ 566: +/***/ (function(module, __unusedexports, __webpack_require__) { + +"use strict"; + + +var enhanceError = __webpack_require__(948); + +/** + * Create an Error with the specified message, config, error code, request and response. + * + * @param {string} message The error message. + * @param {Object} config The config. + * @param {string} [code] The error code (for example, 'ECONNABORTED'). + * @param {Object} [request] The request. + * @param {Object} [response] The response. + * @returns {Error} The created error. + */ +module.exports = function createError(message, config, code, request, response) { + var error = new Error(message); + return enhanceError(error, config, code, request, response); +}; + + +/***/ }), + +/***/ 600: +/***/ (function(module, __unusedexports, __webpack_require__) { + +"use strict"; + + +var utils = __webpack_require__(318); + +module.exports = ( + utils.isStandardBrowserEnv() ? + + // Standard browser envs support document.cookie + (function standardBrowserEnv() { + return { + write: function write(name, value, expires, path, domain, secure) { + var cookie = []; + cookie.push(name + '=' + encodeURIComponent(value)); + + if (utils.isNumber(expires)) { + cookie.push('expires=' + new Date(expires).toGMTString()); + } + + if (utils.isString(path)) { + cookie.push('path=' + path); + } + + if (utils.isString(domain)) { + cookie.push('domain=' + domain); + } + + if (secure === true) { + cookie.push('secure'); + } + + document.cookie = cookie.join('; '); + }, + + read: function read(name) { + var match = document.cookie.match(new RegExp('(^|;\\s*)(' + name + ')=([^;]*)')); + return (match ? decodeURIComponent(match[3]) : null); + }, + + remove: function remove(name) { + this.write(name, '', Date.now() - 86400000); + } + }; + })() : + + // Non standard browser env (web workers, react-native) lack needed support. + (function nonStandardBrowserEnv() { + return { + write: function write() {}, + read: function read() { return null; }, + remove: function remove() {} + }; + })() +); + + +/***/ }), + +/***/ 605: +/***/ (function(module) { + +module.exports = require("http"); + +/***/ }), + +/***/ 614: +/***/ (function(module, __unusedexports, __webpack_require__) { + +"use strict"; + + +var utils = __webpack_require__(318); +var settle = __webpack_require__(75); +var buildFullPath = __webpack_require__(79); +var buildURL = __webpack_require__(87); +var http = __webpack_require__(605); +var https = __webpack_require__(211); +var httpFollow = __webpack_require__(150).http; +var httpsFollow = __webpack_require__(150).https; +var url = __webpack_require__(835); +var zlib = __webpack_require__(761); +var pkg = __webpack_require__(481); +var createError = __webpack_require__(566); +var enhanceError = __webpack_require__(948); + +var isHttps = /https:?/; + +/** + * + * @param {http.ClientRequestArgs} options + * @param {AxiosProxyConfig} proxy + * @param {string} location + */ +function setProxy(options, proxy, location) { + options.hostname = proxy.host; + options.host = proxy.host; + options.port = proxy.port; + options.path = location; + + // Basic proxy authorization + if (proxy.auth) { + var base64 = Buffer.from(proxy.auth.username + ':' + proxy.auth.password, 'utf8').toString('base64'); + options.headers['Proxy-Authorization'] = 'Basic ' + base64; + } + + // If a proxy is used, any redirects must also pass through the proxy + options.beforeRedirect = function beforeRedirect(redirection) { + redirection.headers.host = redirection.host; + setProxy(redirection, proxy, redirection.href); + }; +} + +/*eslint consistent-return:0*/ +module.exports = function httpAdapter(config) { + return new Promise(function dispatchHttpRequest(resolvePromise, rejectPromise) { + var resolve = function resolve(value) { + resolvePromise(value); + }; + var reject = function reject(value) { + rejectPromise(value); + }; + var data = config.data; + var headers = config.headers; + + // Set User-Agent (required by some servers) + // Only set header if it hasn't been set in config + // See https://github.com/axios/axios/issues/69 + if (!headers['User-Agent'] && !headers['user-agent']) { + headers['User-Agent'] = 'axios/' + pkg.version; + } + + if (data && !utils.isStream(data)) { + if (Buffer.isBuffer(data)) { + // Nothing to do... + } else if (utils.isArrayBuffer(data)) { + data = Buffer.from(new Uint8Array(data)); + } else if (utils.isString(data)) { + data = Buffer.from(data, 'utf-8'); + } else { + return reject(createError( + 'Data after transformation must be a string, an ArrayBuffer, a Buffer, or a Stream', + config + )); + } + + // Add Content-Length header if data exists + headers['Content-Length'] = data.length; + } + + // HTTP basic authentication + var auth = undefined; + if (config.auth) { + var username = config.auth.username || ''; + var password = config.auth.password || ''; + auth = username + ':' + password; + } + + // Parse url + var fullPath = buildFullPath(config.baseURL, config.url); + var parsed = url.parse(fullPath); + var protocol = parsed.protocol || 'http:'; + + if (!auth && parsed.auth) { + var urlAuth = parsed.auth.split(':'); + var urlUsername = urlAuth[0] || ''; + var urlPassword = urlAuth[1] || ''; + auth = urlUsername + ':' + urlPassword; + } + + if (auth) { + delete headers.Authorization; + } + + var isHttpsRequest = isHttps.test(protocol); + var agent = isHttpsRequest ? config.httpsAgent : config.httpAgent; + + var options = { + path: buildURL(parsed.path, config.params, config.paramsSerializer).replace(/^\?/, ''), + method: config.method.toUpperCase(), + headers: headers, + agent: agent, + agents: { http: config.httpAgent, https: config.httpsAgent }, + auth: auth + }; + + if (config.socketPath) { + options.socketPath = config.socketPath; + } else { + options.hostname = parsed.hostname; + options.port = parsed.port; + } + + var proxy = config.proxy; + if (!proxy && proxy !== false) { + var proxyEnv = protocol.slice(0, -1) + '_proxy'; + var proxyUrl = process.env[proxyEnv] || process.env[proxyEnv.toUpperCase()]; + if (proxyUrl) { + var parsedProxyUrl = url.parse(proxyUrl); + var noProxyEnv = process.env.no_proxy || process.env.NO_PROXY; + var shouldProxy = true; + + if (noProxyEnv) { + var noProxy = noProxyEnv.split(',').map(function trim(s) { + return s.trim(); + }); + + shouldProxy = !noProxy.some(function proxyMatch(proxyElement) { + if (!proxyElement) { + return false; + } + if (proxyElement === '*') { + return true; + } + if (proxyElement[0] === '.' && + parsed.hostname.substr(parsed.hostname.length - proxyElement.length) === proxyElement) { + return true; + } + + return parsed.hostname === proxyElement; + }); + } + + if (shouldProxy) { + proxy = { + host: parsedProxyUrl.hostname, + port: parsedProxyUrl.port, + protocol: parsedProxyUrl.protocol + }; + + if (parsedProxyUrl.auth) { + var proxyUrlAuth = parsedProxyUrl.auth.split(':'); + proxy.auth = { + username: proxyUrlAuth[0], + password: proxyUrlAuth[1] + }; + } + } + } + } + + if (proxy) { + options.headers.host = parsed.hostname + (parsed.port ? ':' + parsed.port : ''); + setProxy(options, proxy, protocol + '//' + parsed.hostname + (parsed.port ? ':' + parsed.port : '') + options.path); + } + + var transport; + var isHttpsProxy = isHttpsRequest && (proxy ? isHttps.test(proxy.protocol) : true); + if (config.transport) { + transport = config.transport; + } else if (config.maxRedirects === 0) { + transport = isHttpsProxy ? https : http; + } else { + if (config.maxRedirects) { + options.maxRedirects = config.maxRedirects; + } + transport = isHttpsProxy ? httpsFollow : httpFollow; + } + + if (config.maxBodyLength > -1) { + options.maxBodyLength = config.maxBodyLength; + } + + // Create the request + var req = transport.request(options, function handleResponse(res) { + if (req.aborted) return; + + // uncompress the response body transparently if required + var stream = res; + + // return the last request in case of redirects + var lastRequest = res.req || req; + + + // if no content, is HEAD request or decompress disabled we should not decompress + if (res.statusCode !== 204 && lastRequest.method !== 'HEAD' && config.decompress !== false) { + switch (res.headers['content-encoding']) { + /*eslint default-case:0*/ + case 'gzip': + case 'compress': + case 'deflate': + // add the unzipper to the body stream processing pipeline + stream = stream.pipe(zlib.createUnzip()); + + // remove the content-encoding in order to not confuse downstream operations + delete res.headers['content-encoding']; + break; + } + } + + var response = { + status: res.statusCode, + statusText: res.statusMessage, + headers: res.headers, + config: config, + request: lastRequest + }; + + if (config.responseType === 'stream') { + response.data = stream; + settle(resolve, reject, response); + } else { + var responseBuffer = []; + stream.on('data', function handleStreamData(chunk) { + responseBuffer.push(chunk); + + // make sure the content length is not over the maxContentLength if specified + if (config.maxContentLength > -1 && Buffer.concat(responseBuffer).length > config.maxContentLength) { + stream.destroy(); + reject(createError('maxContentLength size of ' + config.maxContentLength + ' exceeded', + config, null, lastRequest)); + } + }); + + stream.on('error', function handleStreamError(err) { + if (req.aborted) return; + reject(enhanceError(err, config, null, lastRequest)); + }); + + stream.on('end', function handleStreamEnd() { + var responseData = Buffer.concat(responseBuffer); + if (config.responseType !== 'arraybuffer') { + responseData = responseData.toString(config.responseEncoding); + if (!config.responseEncoding || config.responseEncoding === 'utf8') { + responseData = utils.stripBOM(responseData); + } + } + + response.data = responseData; + settle(resolve, reject, response); + }); + } + }); + + // Handle errors + req.on('error', function handleRequestError(err) { + if (req.aborted && err.code !== 'ERR_FR_TOO_MANY_REDIRECTS') return; + reject(enhanceError(err, config, null, req)); + }); + + // Handle request timeout + if (config.timeout) { + // Sometime, the response will be very slow, and does not respond, the connect event will be block by event loop system. + // And timer callback will be fired, and abort() will be invoked before connection, then get "socket hang up" and code ECONNRESET. + // At this time, if we have a large number of request, nodejs will hang up some socket on background. and the number will up and up. + // And then these socket which be hang up will devoring CPU little by little. + // ClientRequest.setTimeout will be fired on the specify milliseconds, and can make sure that abort() will be fired after connect. + req.setTimeout(config.timeout, function handleRequestTimeout() { + req.abort(); + reject(createError('timeout of ' + config.timeout + 'ms exceeded', config, 'ECONNABORTED', req)); + }); + } + + if (config.cancelToken) { + // Handle cancellation + config.cancelToken.promise.then(function onCanceled(cancel) { + if (req.aborted) return; + + req.abort(); + reject(cancel); + }); + } + + // Send the request + if (utils.isStream(data)) { + data.on('error', function handleStreamError(err) { + reject(enhanceError(err, config, null, req)); + }).pipe(req); + } else { + req.end(data); + } + }); +}; + + +/***/ }), + +/***/ 622: +/***/ (function(module, __unusedexports, __webpack_require__) { + +"use strict"; + + +var utils = __webpack_require__(318); + +function InterceptorManager() { + this.handlers = []; +} + +/** + * Add a new interceptor to the stack + * + * @param {Function} fulfilled The function to handle `then` for a `Promise` + * @param {Function} rejected The function to handle `reject` for a `Promise` + * + * @return {Number} An ID used to remove interceptor later + */ +InterceptorManager.prototype.use = function use(fulfilled, rejected) { + this.handlers.push({ + fulfilled: fulfilled, + rejected: rejected + }); + return this.handlers.length - 1; +}; + +/** + * Remove an interceptor from the stack + * + * @param {Number} id The ID that was returned by `use` + */ +InterceptorManager.prototype.eject = function eject(id) { + if (this.handlers[id]) { + this.handlers[id] = null; + } +}; + +/** + * Iterate over all the registered interceptors + * + * This method is particularly useful for skipping over any + * interceptors that may have become `null` calling `eject`. + * + * @param {Function} fn The function to call for each interceptor + */ +InterceptorManager.prototype.forEach = function forEach(fn) { + utils.forEach(this.handlers, function forEachHandler(h) { + if (h !== null) { + fn(h); + } + }); +}; + +module.exports = InterceptorManager; + + +/***/ }), + +/***/ 639: +/***/ (function(module, __unusedexports, __webpack_require__) { + +const conversions = __webpack_require__(29); + +/* + This function routes a model to all other models. + + all functions that are routed have a property `.conversion` attached + to the returned synthetic function. This property is an array + of strings, each with the steps in between the 'from' and 'to' + color models (inclusive). + + conversions that are not possible simply are not included. +*/ + +function buildGraph() { + const graph = {}; + // https://jsperf.com/object-keys-vs-for-in-with-closure/3 + const models = Object.keys(conversions); + + for (let len = models.length, i = 0; i < len; i++) { + graph[models[i]] = { + // http://jsperf.com/1-vs-infinity + // micro-opt, but this is simple. + distance: -1, + parent: null + }; + } + + return graph; +} + +// https://en.wikipedia.org/wiki/Breadth-first_search +function deriveBFS(fromModel) { + const graph = buildGraph(); + const queue = [fromModel]; // Unshift -> queue -> pop + + graph[fromModel].distance = 0; + + while (queue.length) { + const current = queue.pop(); + const adjacents = Object.keys(conversions[current]); + + for (let len = adjacents.length, i = 0; i < len; i++) { + const adjacent = adjacents[i]; + const node = graph[adjacent]; + + if (node.distance === -1) { + node.distance = graph[current].distance + 1; + node.parent = current; + queue.unshift(adjacent); + } + } + } + + return graph; +} + +function link(from, to) { + return function (args) { + return to(from(args)); + }; +} + +function wrapConversion(toModel, graph) { + const path = [graph[toModel].parent, toModel]; + let fn = conversions[graph[toModel].parent][toModel]; + + let cur = graph[toModel].parent; + while (graph[cur].parent) { + path.unshift(graph[cur].parent); + fn = link(conversions[graph[cur].parent][cur], fn); + cur = graph[cur].parent; + } + + fn.conversion = path; + return fn; +} + +module.exports = function (fromModel) { + const graph = deriveBFS(fromModel); + const conversion = {}; + + const models = Object.keys(graph); + for (let len = models.length, i = 0; i < len; i++) { + const toModel = models[i]; + const node = graph[toModel]; + + if (node.parent === null) { + // No possible conversion, or this node is the source model. + continue; + } + + conversion[toModel] = wrapConversion(toModel, graph); + } + + return conversion; +}; + + + +/***/ }), + +/***/ 669: +/***/ (function(module) { + +module.exports = require("util"); + +/***/ }), + +/***/ 670: +/***/ (function(module) { + +function webpackEmptyContext(req) { + if (typeof req === 'number' && __webpack_require__.m[req]) + return __webpack_require__(req); +try { return require(req) } +catch (e) { if (e.code !== 'MODULE_NOT_FOUND') throw e } +var e = new Error("Cannot find module '" + req + "'"); + e.code = 'MODULE_NOT_FOUND'; + throw e; +} +webpackEmptyContext.keys = function() { return []; }; +webpackEmptyContext.resolve = webpackEmptyContext; +module.exports = webpackEmptyContext; +webpackEmptyContext.id = 670; + +/***/ }), + +/***/ 704: +/***/ (function(module) { + +module.exports = eval("require")("debug"); + + +/***/ }), + +/***/ 707: +/***/ (function(module, __unusedexports, __webpack_require__) { + +"use strict"; + + +var fs = __webpack_require__(747); +var util = __webpack_require__(669); +var path = __webpack_require__(277); + +let shim; +class Y18N { + constructor(opts) { + // configurable options. + opts = opts || {}; + this.directory = opts.directory || './locales'; + this.updateFiles = typeof opts.updateFiles === 'boolean' ? opts.updateFiles : true; + this.locale = opts.locale || 'en'; + this.fallbackToLanguage = typeof opts.fallbackToLanguage === 'boolean' ? opts.fallbackToLanguage : true; + // internal stuff. + this.cache = Object.create(null); + this.writeQueue = []; + } + __(...args) { + if (typeof arguments[0] !== 'string') { + return this._taggedLiteral(arguments[0], ...arguments); + } + const str = args.shift(); + let cb = function () { }; // start with noop. + if (typeof args[args.length - 1] === 'function') + cb = args.pop(); + cb = cb || function () { }; // noop. + if (!this.cache[this.locale]) + this._readLocaleFile(); + // we've observed a new string, update the language file. + if (!this.cache[this.locale][str] && this.updateFiles) { + this.cache[this.locale][str] = str; + // include the current directory and locale, + // since these values could change before the + // write is performed. + this._enqueueWrite({ + directory: this.directory, + locale: this.locale, + cb + }); + } + else { + cb(); + } + return shim.format.apply(shim.format, [this.cache[this.locale][str] || str].concat(args)); + } + __n() { + const args = Array.prototype.slice.call(arguments); + const singular = args.shift(); + const plural = args.shift(); + const quantity = args.shift(); + let cb = function () { }; // start with noop. + if (typeof args[args.length - 1] === 'function') + cb = args.pop(); + if (!this.cache[this.locale]) + this._readLocaleFile(); + let str = quantity === 1 ? singular : plural; + if (this.cache[this.locale][singular]) { + const entry = this.cache[this.locale][singular]; + str = entry[quantity === 1 ? 'one' : 'other']; + } + // we've observed a new string, update the language file. + if (!this.cache[this.locale][singular] && this.updateFiles) { + this.cache[this.locale][singular] = { + one: singular, + other: plural + }; + // include the current directory and locale, + // since these values could change before the + // write is performed. + this._enqueueWrite({ + directory: this.directory, + locale: this.locale, + cb + }); + } + else { + cb(); + } + // if a %d placeholder is provided, add quantity + // to the arguments expanded by util.format. + const values = [str]; + if (~str.indexOf('%d')) + values.push(quantity); + return shim.format.apply(shim.format, values.concat(args)); + } + setLocale(locale) { + this.locale = locale; + } + getLocale() { + return this.locale; + } + updateLocale(obj) { + if (!this.cache[this.locale]) + this._readLocaleFile(); + for (const key in obj) { + if (Object.prototype.hasOwnProperty.call(obj, key)) { + this.cache[this.locale][key] = obj[key]; + } + } + } + _taggedLiteral(parts, ...args) { + let str = ''; + parts.forEach(function (part, i) { + const arg = args[i + 1]; + str += part; + if (typeof arg !== 'undefined') { + str += '%s'; + } + }); + return this.__.apply(this, [str].concat([].slice.call(args, 1))); + } + _enqueueWrite(work) { + this.writeQueue.push(work); + if (this.writeQueue.length === 1) + this._processWriteQueue(); + } + _processWriteQueue() { + const _this = this; + const work = this.writeQueue[0]; + // destructure the enqueued work. + const directory = work.directory; + const locale = work.locale; + const cb = work.cb; + const languageFile = this._resolveLocaleFile(directory, locale); + const serializedLocale = JSON.stringify(this.cache[locale], null, 2); + shim.fs.writeFile(languageFile, serializedLocale, 'utf-8', function (err) { + _this.writeQueue.shift(); + if (_this.writeQueue.length > 0) + _this._processWriteQueue(); + cb(err); + }); + } + _readLocaleFile() { + let localeLookup = {}; + const languageFile = this._resolveLocaleFile(this.directory, this.locale); + try { + // When using a bundler such as webpack, readFileSync may not be defined: + if (shim.fs.readFileSync) { + localeLookup = JSON.parse(shim.fs.readFileSync(languageFile, 'utf-8')); + } + } + catch (err) { + if (err instanceof SyntaxError) { + err.message = 'syntax error in ' + languageFile; + } + if (err.code === 'ENOENT') + localeLookup = {}; + else + throw err; + } + this.cache[this.locale] = localeLookup; + } + _resolveLocaleFile(directory, locale) { + let file = shim.resolve(directory, './', locale + '.json'); + if (this.fallbackToLanguage && !this._fileExistsSync(file) && ~locale.lastIndexOf('_')) { + // attempt fallback to language only + const languageFile = shim.resolve(directory, './', locale.split('_')[0] + '.json'); + if (this._fileExistsSync(languageFile)) + file = languageFile; + } + return file; + } + _fileExistsSync(file) { + return shim.exists(file); + } +} +function y18n$1(opts, _shim) { + shim = _shim; + const y18n = new Y18N(opts); + return { + __: y18n.__.bind(y18n), + __n: y18n.__n.bind(y18n), + setLocale: y18n.setLocale.bind(y18n), + getLocale: y18n.getLocale.bind(y18n), + updateLocale: y18n.updateLocale.bind(y18n), + locale: y18n.locale + }; +} + +var nodePlatformShim = { + fs: { + readFileSync: fs.readFileSync, + writeFile: fs.writeFile + }, + format: util.format, + resolve: path.resolve, + exists: (file) => { + try { + return fs.statSync(file).isFile(); + } + catch (err) { + return false; + } + } +}; + +const y18n = (opts) => { + return y18n$1(opts, nodePlatformShim); +}; + +module.exports = y18n; + + +/***/ }), + +/***/ 708: +/***/ (function(module) { + +"use strict"; + + +/** + * Syntactic sugar for invoking a function and expanding an array for arguments. + * + * Common use case would be to use `Function.prototype.apply`. + * + * ```js + * function f(x, y, z) {} + * var args = [1, 2, 3]; + * f.apply(null, args); + * ``` + * + * With `spread` this example can be re-written. + * + * ```js + * spread(function(x, y, z) {})([1, 2, 3]); + * ``` + * + * @param {Function} callback + * @returns {Function} + */ +module.exports = function spread(callback) { + return function wrap(arr) { + return callback.apply(null, arr); + }; +}; + + +/***/ }), + +/***/ 710: +/***/ (function(module) { + +"use strict"; + + +module.exports = { + "aliceblue": [240, 248, 255], + "antiquewhite": [250, 235, 215], + "aqua": [0, 255, 255], + "aquamarine": [127, 255, 212], + "azure": [240, 255, 255], + "beige": [245, 245, 220], + "bisque": [255, 228, 196], + "black": [0, 0, 0], + "blanchedalmond": [255, 235, 205], + "blue": [0, 0, 255], + "blueviolet": [138, 43, 226], + "brown": [165, 42, 42], + "burlywood": [222, 184, 135], + "cadetblue": [95, 158, 160], + "chartreuse": [127, 255, 0], + "chocolate": [210, 105, 30], + "coral": [255, 127, 80], + "cornflowerblue": [100, 149, 237], + "cornsilk": [255, 248, 220], + "crimson": [220, 20, 60], + "cyan": [0, 255, 255], + "darkblue": [0, 0, 139], + "darkcyan": [0, 139, 139], + "darkgoldenrod": [184, 134, 11], + "darkgray": [169, 169, 169], + "darkgreen": [0, 100, 0], + "darkgrey": [169, 169, 169], + "darkkhaki": [189, 183, 107], + "darkmagenta": [139, 0, 139], + "darkolivegreen": [85, 107, 47], + "darkorange": [255, 140, 0], + "darkorchid": [153, 50, 204], + "darkred": [139, 0, 0], + "darksalmon": [233, 150, 122], + "darkseagreen": [143, 188, 143], + "darkslateblue": [72, 61, 139], + "darkslategray": [47, 79, 79], + "darkslategrey": [47, 79, 79], + "darkturquoise": [0, 206, 209], + "darkviolet": [148, 0, 211], + "deeppink": [255, 20, 147], + "deepskyblue": [0, 191, 255], + "dimgray": [105, 105, 105], + "dimgrey": [105, 105, 105], + "dodgerblue": [30, 144, 255], + "firebrick": [178, 34, 34], + "floralwhite": [255, 250, 240], + "forestgreen": [34, 139, 34], + "fuchsia": [255, 0, 255], + "gainsboro": [220, 220, 220], + "ghostwhite": [248, 248, 255], + "gold": [255, 215, 0], + "goldenrod": [218, 165, 32], + "gray": [128, 128, 128], + "green": [0, 128, 0], + "greenyellow": [173, 255, 47], + "grey": [128, 128, 128], + "honeydew": [240, 255, 240], + "hotpink": [255, 105, 180], + "indianred": [205, 92, 92], + "indigo": [75, 0, 130], + "ivory": [255, 255, 240], + "khaki": [240, 230, 140], + "lavender": [230, 230, 250], + "lavenderblush": [255, 240, 245], + "lawngreen": [124, 252, 0], + "lemonchiffon": [255, 250, 205], + "lightblue": [173, 216, 230], + "lightcoral": [240, 128, 128], + "lightcyan": [224, 255, 255], + "lightgoldenrodyellow": [250, 250, 210], + "lightgray": [211, 211, 211], + "lightgreen": [144, 238, 144], + "lightgrey": [211, 211, 211], + "lightpink": [255, 182, 193], + "lightsalmon": [255, 160, 122], + "lightseagreen": [32, 178, 170], + "lightskyblue": [135, 206, 250], + "lightslategray": [119, 136, 153], + "lightslategrey": [119, 136, 153], + "lightsteelblue": [176, 196, 222], + "lightyellow": [255, 255, 224], + "lime": [0, 255, 0], + "limegreen": [50, 205, 50], + "linen": [250, 240, 230], + "magenta": [255, 0, 255], + "maroon": [128, 0, 0], + "mediumaquamarine": [102, 205, 170], + "mediumblue": [0, 0, 205], + "mediumorchid": [186, 85, 211], + "mediumpurple": [147, 112, 219], + "mediumseagreen": [60, 179, 113], + "mediumslateblue": [123, 104, 238], + "mediumspringgreen": [0, 250, 154], + "mediumturquoise": [72, 209, 204], + "mediumvioletred": [199, 21, 133], + "midnightblue": [25, 25, 112], + "mintcream": [245, 255, 250], + "mistyrose": [255, 228, 225], + "moccasin": [255, 228, 181], + "navajowhite": [255, 222, 173], + "navy": [0, 0, 128], + "oldlace": [253, 245, 230], + "olive": [128, 128, 0], + "olivedrab": [107, 142, 35], + "orange": [255, 165, 0], + "orangered": [255, 69, 0], + "orchid": [218, 112, 214], + "palegoldenrod": [238, 232, 170], + "palegreen": [152, 251, 152], + "paleturquoise": [175, 238, 238], + "palevioletred": [219, 112, 147], + "papayawhip": [255, 239, 213], + "peachpuff": [255, 218, 185], + "peru": [205, 133, 63], + "pink": [255, 192, 203], + "plum": [221, 160, 221], + "powderblue": [176, 224, 230], + "purple": [128, 0, 128], + "rebeccapurple": [102, 51, 153], + "red": [255, 0, 0], + "rosybrown": [188, 143, 143], + "royalblue": [65, 105, 225], + "saddlebrown": [139, 69, 19], + "salmon": [250, 128, 114], + "sandybrown": [244, 164, 96], + "seagreen": [46, 139, 87], + "seashell": [255, 245, 238], + "sienna": [160, 82, 45], + "silver": [192, 192, 192], + "skyblue": [135, 206, 235], + "slateblue": [106, 90, 205], + "slategray": [112, 128, 144], + "slategrey": [112, 128, 144], + "snow": [255, 250, 250], + "springgreen": [0, 255, 127], + "steelblue": [70, 130, 180], + "tan": [210, 180, 140], + "teal": [0, 128, 128], + "thistle": [216, 191, 216], + "tomato": [255, 99, 71], + "turquoise": [64, 224, 208], + "violet": [238, 130, 238], + "wheat": [245, 222, 179], + "white": [255, 255, 255], + "whitesmoke": [245, 245, 245], + "yellow": [255, 255, 0], + "yellowgreen": [154, 205, 50] +}; + + +/***/ }), + +/***/ 716: +/***/ (function(module) { + +"use strict"; + + +module.exports = ({onlyFirst = false} = {}) => { + const pattern = [ + '[\\u001B\\u009B][[\\]()#;?]*(?:(?:(?:[a-zA-Z\\d]*(?:;[-a-zA-Z\\d\\/#&.:=?%@~_]*)*)?\\u0007)', + '(?:(?:\\d{1,4}(?:;\\d{0,4})*)?[\\dA-PR-TZcf-ntqry=><~]))' + ].join('|'); + + return new RegExp(pattern, onlyFirst ? undefined : 'g'); +}; + + +/***/ }), + +/***/ 728: +/***/ (function(module, __unusedexports, __webpack_require__) { + +"use strict"; + + +var assert = __webpack_require__(357); + +class YError extends Error { + constructor(msg) { + super(msg || 'yargs error'); + this.name = 'YError'; + Error.captureStackTrace(this, YError); + } +} + +let previouslyVisitedConfigs = []; +let shim; +function applyExtends(config, cwd, mergeExtends, _shim) { + shim = _shim; + let defaultConfig = {}; + if (Object.prototype.hasOwnProperty.call(config, 'extends')) { + if (typeof config.extends !== 'string') + return defaultConfig; + const isPath = /\.json|\..*rc$/.test(config.extends); + let pathToDefault = null; + if (!isPath) { + try { + pathToDefault = /*require.resolve*/(__webpack_require__(167).resolve(config.extends)); + } + catch (_err) { + return config; + } + } + else { + pathToDefault = getPathToDefaultConfig(cwd, config.extends); + } + checkForCircularExtends(pathToDefault); + previouslyVisitedConfigs.push(pathToDefault); + defaultConfig = isPath + ? JSON.parse(shim.readFileSync(pathToDefault, 'utf8')) + : __webpack_require__(167)(config.extends); + delete config.extends; + defaultConfig = applyExtends(defaultConfig, shim.path.dirname(pathToDefault), mergeExtends, shim); + } + previouslyVisitedConfigs = []; + return mergeExtends + ? mergeDeep(defaultConfig, config) + : Object.assign({}, defaultConfig, config); +} +function checkForCircularExtends(cfgPath) { + if (previouslyVisitedConfigs.indexOf(cfgPath) > -1) { + throw new YError(`Circular extended configurations: '${cfgPath}'.`); + } +} +function getPathToDefaultConfig(cwd, pathToExtend) { + return shim.path.resolve(cwd, pathToExtend); +} +function mergeDeep(config1, config2) { + const target = {}; + function isObject(obj) { + return obj && typeof obj === 'object' && !Array.isArray(obj); + } + Object.assign(target, config1); + for (const key of Object.keys(config2)) { + if (isObject(config2[key]) && isObject(target[key])) { + target[key] = mergeDeep(config1[key], config2[key]); + } + else { + target[key] = config2[key]; + } + } + return target; +} + +function parseCommand(cmd) { + const extraSpacesStrippedCommand = cmd.replace(/\s{2,}/g, ' '); + const splitCommand = extraSpacesStrippedCommand.split(/\s+(?![^[]*]|[^<]*>)/); + const bregex = /\.*[\][<>]/g; + const firstCommand = splitCommand.shift(); + if (!firstCommand) + throw new Error(`No command found in: ${cmd}`); + const parsedCommand = { + cmd: firstCommand.replace(bregex, ''), + demanded: [], + optional: [], + }; + splitCommand.forEach((cmd, i) => { + let variadic = false; + cmd = cmd.replace(/\s/g, ''); + if (/\.+[\]>]/.test(cmd) && i === splitCommand.length - 1) + variadic = true; + if (/^\[/.test(cmd)) { + parsedCommand.optional.push({ + cmd: cmd.replace(bregex, '').split('|'), + variadic, + }); + } + else { + parsedCommand.demanded.push({ + cmd: cmd.replace(bregex, '').split('|'), + variadic, + }); + } + }); + return parsedCommand; +} + +const positionName = ['first', 'second', 'third', 'fourth', 'fifth', 'sixth']; +function argsert(arg1, arg2, arg3) { + function parseArgs() { + return typeof arg1 === 'object' + ? [{ demanded: [], optional: [] }, arg1, arg2] + : [ + parseCommand(`cmd ${arg1}`), + arg2, + arg3, + ]; + } + try { + let position = 0; + const [parsed, callerArguments, _length] = parseArgs(); + const args = [].slice.call(callerArguments); + while (args.length && args[args.length - 1] === undefined) + args.pop(); + const length = _length || args.length; + if (length < parsed.demanded.length) { + throw new YError(`Not enough arguments provided. Expected ${parsed.demanded.length} but received ${args.length}.`); + } + const totalCommands = parsed.demanded.length + parsed.optional.length; + if (length > totalCommands) { + throw new YError(`Too many arguments provided. Expected max ${totalCommands} but received ${length}.`); + } + parsed.demanded.forEach(demanded => { + const arg = args.shift(); + const observedType = guessType(arg); + const matchingTypes = demanded.cmd.filter(type => type === observedType || type === '*'); + if (matchingTypes.length === 0) + argumentTypeError(observedType, demanded.cmd, position); + position += 1; + }); + parsed.optional.forEach(optional => { + if (args.length === 0) + return; + const arg = args.shift(); + const observedType = guessType(arg); + const matchingTypes = optional.cmd.filter(type => type === observedType || type === '*'); + if (matchingTypes.length === 0) + argumentTypeError(observedType, optional.cmd, position); + position += 1; + }); + } + catch (err) { + console.warn(err.stack); + } +} +function guessType(arg) { + if (Array.isArray(arg)) { + return 'array'; + } + else if (arg === null) { + return 'null'; + } + return typeof arg; +} +function argumentTypeError(observedType, allowedTypes, position) { + throw new YError(`Invalid ${positionName[position] || 'manyith'} argument. Expected ${allowedTypes.join(' or ')} but received ${observedType}.`); +} + +function isPromise(maybePromise) { + return (!!maybePromise && + !!maybePromise.then && + typeof maybePromise.then === 'function'); +} + +function assertNotStrictEqual(actual, expected, shim, message) { + shim.assert.notStrictEqual(actual, expected, message); +} +function assertSingleKey(actual, shim) { + shim.assert.strictEqual(typeof actual, 'string'); +} +function objectKeys(object) { + return Object.keys(object); +} + +function objFilter(original = {}, filter = () => true) { + const obj = {}; + objectKeys(original).forEach(key => { + if (filter(key, original[key])) { + obj[key] = original[key]; + } + }); + return obj; +} + +function globalMiddlewareFactory(globalMiddleware, context) { + return function (callback, applyBeforeValidation = false) { + argsert(' [boolean]', [callback, applyBeforeValidation], arguments.length); + if (Array.isArray(callback)) { + for (let i = 0; i < callback.length; i++) { + if (typeof callback[i] !== 'function') { + throw Error('middleware must be a function'); + } + callback[i].applyBeforeValidation = applyBeforeValidation; + } + Array.prototype.push.apply(globalMiddleware, callback); + } + else if (typeof callback === 'function') { + callback.applyBeforeValidation = applyBeforeValidation; + globalMiddleware.push(callback); + } + return context; + }; +} +function commandMiddlewareFactory(commandMiddleware) { + if (!commandMiddleware) + return []; + return commandMiddleware.map(middleware => { + middleware.applyBeforeValidation = false; + return middleware; + }); +} +function applyMiddleware(argv, yargs, middlewares, beforeValidation) { + const beforeValidationError = new Error('middleware cannot return a promise when applyBeforeValidation is true'); + return middlewares.reduce((acc, middleware) => { + if (middleware.applyBeforeValidation !== beforeValidation) { + return acc; + } + if (isPromise(acc)) { + return acc + .then(initialObj => Promise.all([ + initialObj, + middleware(initialObj, yargs), + ])) + .then(([initialObj, middlewareObj]) => Object.assign(initialObj, middlewareObj)); + } + else { + const result = middleware(acc, yargs); + if (beforeValidation && isPromise(result)) + throw beforeValidationError; + return isPromise(result) + ? result.then(middlewareObj => Object.assign(acc, middlewareObj)) + : Object.assign(acc, result); + } + }, argv); +} + +function getProcessArgvBinIndex() { + if (isBundledElectronApp()) + return 0; + return 1; +} +function isBundledElectronApp() { + return isElectronApp() && !process.defaultApp; +} +function isElectronApp() { + return !!process.versions.electron; +} +function hideBin(argv) { + return argv.slice(getProcessArgvBinIndex() + 1); +} +function getProcessArgvBin() { + return process.argv[getProcessArgvBinIndex()]; +} + +var processArgv = /*#__PURE__*/Object.freeze({ + __proto__: null, + hideBin: hideBin, + getProcessArgvBin: getProcessArgvBin +}); + +function whichModule(exported) { + if (false) + {} + for (let i = 0, files = Object.keys(__webpack_require__.c), mod; i < files.length; i++) { + mod = __webpack_require__.c[files[i]]; + if (mod.exports === exported) + return mod; + } + return null; +} + +const DEFAULT_MARKER = /(^\*)|(^\$0)/; +function command(yargs, usage, validation, globalMiddleware = [], shim) { + const self = {}; + let handlers = {}; + let aliasMap = {}; + let defaultCommand; + self.addHandler = function addHandler(cmd, description, builder, handler, commandMiddleware, deprecated) { + let aliases = []; + const middlewares = commandMiddlewareFactory(commandMiddleware); + handler = handler || (() => { }); + if (Array.isArray(cmd)) { + if (isCommandAndAliases(cmd)) { + [cmd, ...aliases] = cmd; + } + else { + for (const command of cmd) { + self.addHandler(command); + } + } + } + else if (isCommandHandlerDefinition(cmd)) { + let command = Array.isArray(cmd.command) || typeof cmd.command === 'string' + ? cmd.command + : moduleName(cmd); + if (cmd.aliases) + command = [].concat(command).concat(cmd.aliases); + self.addHandler(command, extractDesc(cmd), cmd.builder, cmd.handler, cmd.middlewares, cmd.deprecated); + return; + } + else if (isCommandBuilderDefinition(builder)) { + self.addHandler([cmd].concat(aliases), description, builder.builder, builder.handler, builder.middlewares, builder.deprecated); + return; + } + if (typeof cmd === 'string') { + const parsedCommand = parseCommand(cmd); + aliases = aliases.map(alias => parseCommand(alias).cmd); + let isDefault = false; + const parsedAliases = [parsedCommand.cmd].concat(aliases).filter(c => { + if (DEFAULT_MARKER.test(c)) { + isDefault = true; + return false; + } + return true; + }); + if (parsedAliases.length === 0 && isDefault) + parsedAliases.push('$0'); + if (isDefault) { + parsedCommand.cmd = parsedAliases[0]; + aliases = parsedAliases.slice(1); + cmd = cmd.replace(DEFAULT_MARKER, parsedCommand.cmd); + } + aliases.forEach(alias => { + aliasMap[alias] = parsedCommand.cmd; + }); + if (description !== false) { + usage.command(cmd, description, isDefault, aliases, deprecated); + } + handlers[parsedCommand.cmd] = { + original: cmd, + description, + handler, + builder: builder || {}, + middlewares, + deprecated, + demanded: parsedCommand.demanded, + optional: parsedCommand.optional, + }; + if (isDefault) + defaultCommand = handlers[parsedCommand.cmd]; + } + }; + self.addDirectory = function addDirectory(dir, context, req, callerFile, opts) { + opts = opts || {}; + if (typeof opts.recurse !== 'boolean') + opts.recurse = false; + if (!Array.isArray(opts.extensions)) + opts.extensions = ['js']; + const parentVisit = typeof opts.visit === 'function' ? opts.visit : (o) => o; + opts.visit = function visit(obj, joined, filename) { + const visited = parentVisit(obj, joined, filename); + if (visited) { + if (~context.files.indexOf(joined)) + return visited; + context.files.push(joined); + self.addHandler(visited); + } + return visited; + }; + shim.requireDirectory({ require: req, filename: callerFile }, dir, opts); + }; + function moduleName(obj) { + const mod = whichModule(obj); + if (!mod) + throw new Error(`No command name given for module: ${shim.inspect(obj)}`); + return commandFromFilename(mod.filename); + } + function commandFromFilename(filename) { + return shim.path.basename(filename, shim.path.extname(filename)); + } + function extractDesc({ describe, description, desc, }) { + for (const test of [describe, description, desc]) { + if (typeof test === 'string' || test === false) + return test; + assertNotStrictEqual(test, true, shim); + } + return false; + } + self.getCommands = () => Object.keys(handlers).concat(Object.keys(aliasMap)); + self.getCommandHandlers = () => handlers; + self.hasDefaultCommand = () => !!defaultCommand; + self.runCommand = function runCommand(command, yargs, parsed, commandIndex) { + let aliases = parsed.aliases; + const commandHandler = handlers[command] || handlers[aliasMap[command]] || defaultCommand; + const currentContext = yargs.getContext(); + let numFiles = currentContext.files.length; + const parentCommands = currentContext.commands.slice(); + let innerArgv = parsed.argv; + let positionalMap = {}; + if (command) { + currentContext.commands.push(command); + currentContext.fullCommands.push(commandHandler.original); + } + const builder = commandHandler.builder; + if (isCommandBuilderCallback(builder)) { + const builderOutput = builder(yargs.reset(parsed.aliases)); + const innerYargs = isYargsInstance(builderOutput) ? builderOutput : yargs; + if (shouldUpdateUsage(innerYargs)) { + innerYargs + .getUsageInstance() + .usage(usageFromParentCommandsCommandHandler(parentCommands, commandHandler), commandHandler.description); + } + innerArgv = innerYargs._parseArgs(null, null, true, commandIndex); + aliases = innerYargs.parsed.aliases; + } + else if (isCommandBuilderOptionDefinitions(builder)) { + const innerYargs = yargs.reset(parsed.aliases); + if (shouldUpdateUsage(innerYargs)) { + innerYargs + .getUsageInstance() + .usage(usageFromParentCommandsCommandHandler(parentCommands, commandHandler), commandHandler.description); + } + Object.keys(commandHandler.builder).forEach(key => { + innerYargs.option(key, builder[key]); + }); + innerArgv = innerYargs._parseArgs(null, null, true, commandIndex); + aliases = innerYargs.parsed.aliases; + } + if (!yargs._hasOutput()) { + positionalMap = populatePositionals(commandHandler, innerArgv, currentContext); + } + const middlewares = globalMiddleware + .slice(0) + .concat(commandHandler.middlewares); + applyMiddleware(innerArgv, yargs, middlewares, true); + if (!yargs._hasOutput()) { + yargs._runValidation(innerArgv, aliases, positionalMap, yargs.parsed.error, !command); + } + if (commandHandler.handler && !yargs._hasOutput()) { + yargs._setHasOutput(); + const populateDoubleDash = !!yargs.getOptions().configuration['populate--']; + yargs._postProcess(innerArgv, populateDoubleDash); + innerArgv = applyMiddleware(innerArgv, yargs, middlewares, false); + let handlerResult; + if (isPromise(innerArgv)) { + handlerResult = innerArgv.then(argv => commandHandler.handler(argv)); + } + else { + handlerResult = commandHandler.handler(innerArgv); + } + const handlerFinishCommand = yargs.getHandlerFinishCommand(); + if (isPromise(handlerResult)) { + yargs.getUsageInstance().cacheHelpMessage(); + handlerResult + .then(value => { + if (handlerFinishCommand) { + handlerFinishCommand(value); + } + }) + .catch(error => { + try { + yargs.getUsageInstance().fail(null, error); + } + catch (err) { + } + }) + .then(() => { + yargs.getUsageInstance().clearCachedHelpMessage(); + }); + } + else { + if (handlerFinishCommand) { + handlerFinishCommand(handlerResult); + } + } + } + if (command) { + currentContext.commands.pop(); + currentContext.fullCommands.pop(); + } + numFiles = currentContext.files.length - numFiles; + if (numFiles > 0) + currentContext.files.splice(numFiles * -1, numFiles); + return innerArgv; + }; + function shouldUpdateUsage(yargs) { + return (!yargs.getUsageInstance().getUsageDisabled() && + yargs.getUsageInstance().getUsage().length === 0); + } + function usageFromParentCommandsCommandHandler(parentCommands, commandHandler) { + const c = DEFAULT_MARKER.test(commandHandler.original) + ? commandHandler.original.replace(DEFAULT_MARKER, '').trim() + : commandHandler.original; + const pc = parentCommands.filter(c => { + return !DEFAULT_MARKER.test(c); + }); + pc.push(c); + return `$0 ${pc.join(' ')}`; + } + self.runDefaultBuilderOn = function (yargs) { + assertNotStrictEqual(defaultCommand, undefined, shim); + if (shouldUpdateUsage(yargs)) { + const commandString = DEFAULT_MARKER.test(defaultCommand.original) + ? defaultCommand.original + : defaultCommand.original.replace(/^[^[\]<>]*/, '$0 '); + yargs.getUsageInstance().usage(commandString, defaultCommand.description); + } + const builder = defaultCommand.builder; + if (isCommandBuilderCallback(builder)) { + builder(yargs); + } + else if (!isCommandBuilderDefinition(builder)) { + Object.keys(builder).forEach(key => { + yargs.option(key, builder[key]); + }); + } + }; + function populatePositionals(commandHandler, argv, context) { + argv._ = argv._.slice(context.commands.length); + const demanded = commandHandler.demanded.slice(0); + const optional = commandHandler.optional.slice(0); + const positionalMap = {}; + validation.positionalCount(demanded.length, argv._.length); + while (demanded.length) { + const demand = demanded.shift(); + populatePositional(demand, argv, positionalMap); + } + while (optional.length) { + const maybe = optional.shift(); + populatePositional(maybe, argv, positionalMap); + } + argv._ = context.commands.concat(argv._.map(a => '' + a)); + postProcessPositionals(argv, positionalMap, self.cmdToParseOptions(commandHandler.original)); + return positionalMap; + } + function populatePositional(positional, argv, positionalMap) { + const cmd = positional.cmd[0]; + if (positional.variadic) { + positionalMap[cmd] = argv._.splice(0).map(String); + } + else { + if (argv._.length) + positionalMap[cmd] = [String(argv._.shift())]; + } + } + function postProcessPositionals(argv, positionalMap, parseOptions) { + const options = Object.assign({}, yargs.getOptions()); + options.default = Object.assign(parseOptions.default, options.default); + for (const key of Object.keys(parseOptions.alias)) { + options.alias[key] = (options.alias[key] || []).concat(parseOptions.alias[key]); + } + options.array = options.array.concat(parseOptions.array); + options.config = {}; + const unparsed = []; + Object.keys(positionalMap).forEach(key => { + positionalMap[key].map(value => { + if (options.configuration['unknown-options-as-args']) + options.key[key] = true; + unparsed.push(`--${key}`); + unparsed.push(value); + }); + }); + if (!unparsed.length) + return; + const config = Object.assign({}, options.configuration, { + 'populate--': true, + }); + const parsed = shim.Parser.detailed(unparsed, Object.assign({}, options, { + configuration: config, + })); + if (parsed.error) { + yargs.getUsageInstance().fail(parsed.error.message, parsed.error); + } + else { + const positionalKeys = Object.keys(positionalMap); + Object.keys(positionalMap).forEach(key => { + positionalKeys.push(...parsed.aliases[key]); + }); + Object.keys(parsed.argv).forEach(key => { + if (positionalKeys.indexOf(key) !== -1) { + if (!positionalMap[key]) + positionalMap[key] = parsed.argv[key]; + argv[key] = parsed.argv[key]; + } + }); + } + } + self.cmdToParseOptions = function (cmdString) { + const parseOptions = { + array: [], + default: {}, + alias: {}, + demand: {}, + }; + const parsed = parseCommand(cmdString); + parsed.demanded.forEach(d => { + const [cmd, ...aliases] = d.cmd; + if (d.variadic) { + parseOptions.array.push(cmd); + parseOptions.default[cmd] = []; + } + parseOptions.alias[cmd] = aliases; + parseOptions.demand[cmd] = true; + }); + parsed.optional.forEach(o => { + const [cmd, ...aliases] = o.cmd; + if (o.variadic) { + parseOptions.array.push(cmd); + parseOptions.default[cmd] = []; + } + parseOptions.alias[cmd] = aliases; + }); + return parseOptions; + }; + self.reset = () => { + handlers = {}; + aliasMap = {}; + defaultCommand = undefined; + return self; + }; + const frozens = []; + self.freeze = () => { + frozens.push({ + handlers, + aliasMap, + defaultCommand, + }); + }; + self.unfreeze = () => { + const frozen = frozens.pop(); + assertNotStrictEqual(frozen, undefined, shim); + ({ handlers, aliasMap, defaultCommand } = frozen); + }; + return self; +} +function isCommandBuilderDefinition(builder) { + return (typeof builder === 'object' && + !!builder.builder && + typeof builder.handler === 'function'); +} +function isCommandAndAliases(cmd) { + if (cmd.every(c => typeof c === 'string')) { + return true; + } + else { + return false; + } +} +function isCommandBuilderCallback(builder) { + return typeof builder === 'function'; +} +function isCommandBuilderOptionDefinitions(builder) { + return typeof builder === 'object'; +} +function isCommandHandlerDefinition(cmd) { + return typeof cmd === 'object' && !Array.isArray(cmd); +} + +function setBlocking(blocking) { + if (typeof process === 'undefined') + return; + [process.stdout, process.stderr].forEach(_stream => { + const stream = _stream; + if (stream._handle && + stream.isTTY && + typeof stream._handle.setBlocking === 'function') { + stream._handle.setBlocking(blocking); + } + }); +} + +function usage(yargs, y18n, shim) { + const __ = y18n.__; + const self = {}; + const fails = []; + self.failFn = function failFn(f) { + fails.push(f); + }; + let failMessage = null; + let showHelpOnFail = true; + self.showHelpOnFail = function showHelpOnFailFn(arg1 = true, arg2) { + function parseFunctionArgs() { + return typeof arg1 === 'string' ? [true, arg1] : [arg1, arg2]; + } + const [enabled, message] = parseFunctionArgs(); + failMessage = message; + showHelpOnFail = enabled; + return self; + }; + let failureOutput = false; + self.fail = function fail(msg, err) { + const logger = yargs._getLoggerInstance(); + if (fails.length) { + for (let i = fails.length - 1; i >= 0; --i) { + fails[i](msg, err, self); + } + } + else { + if (yargs.getExitProcess()) + setBlocking(true); + if (!failureOutput) { + failureOutput = true; + if (showHelpOnFail) { + yargs.showHelp('error'); + logger.error(); + } + if (msg || err) + logger.error(msg || err); + if (failMessage) { + if (msg || err) + logger.error(''); + logger.error(failMessage); + } + } + err = err || new YError(msg); + if (yargs.getExitProcess()) { + return yargs.exit(1); + } + else if (yargs._hasParseCallback()) { + return yargs.exit(1, err); + } + else { + throw err; + } + } + }; + let usages = []; + let usageDisabled = false; + self.usage = (msg, description) => { + if (msg === null) { + usageDisabled = true; + usages = []; + return self; + } + usageDisabled = false; + usages.push([msg, description || '']); + return self; + }; + self.getUsage = () => { + return usages; + }; + self.getUsageDisabled = () => { + return usageDisabled; + }; + self.getPositionalGroupName = () => { + return __('Positionals:'); + }; + let examples = []; + self.example = (cmd, description) => { + examples.push([cmd, description || '']); + }; + let commands = []; + self.command = function command(cmd, description, isDefault, aliases, deprecated = false) { + if (isDefault) { + commands = commands.map(cmdArray => { + cmdArray[2] = false; + return cmdArray; + }); + } + commands.push([cmd, description || '', isDefault, aliases, deprecated]); + }; + self.getCommands = () => commands; + let descriptions = {}; + self.describe = function describe(keyOrKeys, desc) { + if (Array.isArray(keyOrKeys)) { + keyOrKeys.forEach(k => { + self.describe(k, desc); + }); + } + else if (typeof keyOrKeys === 'object') { + Object.keys(keyOrKeys).forEach(k => { + self.describe(k, keyOrKeys[k]); + }); + } + else { + descriptions[keyOrKeys] = desc; + } + }; + self.getDescriptions = () => descriptions; + let epilogs = []; + self.epilog = msg => { + epilogs.push(msg); + }; + let wrapSet = false; + let wrap; + self.wrap = cols => { + wrapSet = true; + wrap = cols; + }; + function getWrap() { + if (!wrapSet) { + wrap = windowWidth(); + wrapSet = true; + } + return wrap; + } + const deferY18nLookupPrefix = '__yargsString__:'; + self.deferY18nLookup = str => deferY18nLookupPrefix + str; + self.help = function help() { + if (cachedHelpMessage) + return cachedHelpMessage; + normalizeAliases(); + const base$0 = yargs.customScriptName + ? yargs.$0 + : shim.path.basename(yargs.$0); + const demandedOptions = yargs.getDemandedOptions(); + const demandedCommands = yargs.getDemandedCommands(); + const deprecatedOptions = yargs.getDeprecatedOptions(); + const groups = yargs.getGroups(); + const options = yargs.getOptions(); + let keys = []; + keys = keys.concat(Object.keys(descriptions)); + keys = keys.concat(Object.keys(demandedOptions)); + keys = keys.concat(Object.keys(demandedCommands)); + keys = keys.concat(Object.keys(options.default)); + keys = keys.filter(filterHiddenOptions); + keys = Object.keys(keys.reduce((acc, key) => { + if (key !== '_') + acc[key] = true; + return acc; + }, {})); + const theWrap = getWrap(); + const ui = shim.cliui({ + width: theWrap, + wrap: !!theWrap, + }); + if (!usageDisabled) { + if (usages.length) { + usages.forEach(usage => { + ui.div(`${usage[0].replace(/\$0/g, base$0)}`); + if (usage[1]) { + ui.div({ text: `${usage[1]}`, padding: [1, 0, 0, 0] }); + } + }); + ui.div(); + } + else if (commands.length) { + let u = null; + if (demandedCommands._) { + u = `${base$0} <${__('command')}>\n`; + } + else { + u = `${base$0} [${__('command')}]\n`; + } + ui.div(`${u}`); + } + } + if (commands.length) { + ui.div(__('Commands:')); + const context = yargs.getContext(); + const parentCommands = context.commands.length + ? `${context.commands.join(' ')} ` + : ''; + if (yargs.getParserConfiguration()['sort-commands'] === true) { + commands = commands.sort((a, b) => a[0].localeCompare(b[0])); + } + commands.forEach(command => { + const commandString = `${base$0} ${parentCommands}${command[0].replace(/^\$0 ?/, '')}`; + ui.span({ + text: commandString, + padding: [0, 2, 0, 2], + width: maxWidth(commands, theWrap, `${base$0}${parentCommands}`) + 4, + }, { text: command[1] }); + const hints = []; + if (command[2]) + hints.push(`[${__('default')}]`); + if (command[3] && command[3].length) { + hints.push(`[${__('aliases:')} ${command[3].join(', ')}]`); + } + if (command[4]) { + if (typeof command[4] === 'string') { + hints.push(`[${__('deprecated: %s', command[4])}]`); + } + else { + hints.push(`[${__('deprecated')}]`); + } + } + if (hints.length) { + ui.div({ + text: hints.join(' '), + padding: [0, 0, 0, 2], + align: 'right', + }); + } + else { + ui.div(); + } + }); + ui.div(); + } + const aliasKeys = (Object.keys(options.alias) || []).concat(Object.keys(yargs.parsed.newAliases) || []); + keys = keys.filter(key => !yargs.parsed.newAliases[key] && + aliasKeys.every(alias => (options.alias[alias] || []).indexOf(key) === -1)); + const defaultGroup = __('Options:'); + if (!groups[defaultGroup]) + groups[defaultGroup] = []; + addUngroupedKeys(keys, options.alias, groups, defaultGroup); + const isLongSwitch = (sw) => /^--/.test(getText(sw)); + const displayedGroups = Object.keys(groups) + .filter(groupName => groups[groupName].length > 0) + .map(groupName => { + const normalizedKeys = groups[groupName] + .filter(filterHiddenOptions) + .map(key => { + if (~aliasKeys.indexOf(key)) + return key; + for (let i = 0, aliasKey; (aliasKey = aliasKeys[i]) !== undefined; i++) { + if (~(options.alias[aliasKey] || []).indexOf(key)) + return aliasKey; + } + return key; + }); + return { groupName, normalizedKeys }; + }) + .filter(({ normalizedKeys }) => normalizedKeys.length > 0) + .map(({ groupName, normalizedKeys }) => { + const switches = normalizedKeys.reduce((acc, key) => { + acc[key] = [key] + .concat(options.alias[key] || []) + .map(sw => { + if (groupName === self.getPositionalGroupName()) + return sw; + else { + return ((/^[0-9]$/.test(sw) + ? ~options.boolean.indexOf(key) + ? '-' + : '--' + : sw.length > 1 + ? '--' + : '-') + sw); + } + }) + .sort((sw1, sw2) => isLongSwitch(sw1) === isLongSwitch(sw2) + ? 0 + : isLongSwitch(sw1) + ? 1 + : -1) + .join(', '); + return acc; + }, {}); + return { groupName, normalizedKeys, switches }; + }); + const shortSwitchesUsed = displayedGroups + .filter(({ groupName }) => groupName !== self.getPositionalGroupName()) + .some(({ normalizedKeys, switches }) => !normalizedKeys.every(key => isLongSwitch(switches[key]))); + if (shortSwitchesUsed) { + displayedGroups + .filter(({ groupName }) => groupName !== self.getPositionalGroupName()) + .forEach(({ normalizedKeys, switches }) => { + normalizedKeys.forEach(key => { + if (isLongSwitch(switches[key])) { + switches[key] = addIndentation(switches[key], '-x, '.length); + } + }); + }); + } + displayedGroups.forEach(({ groupName, normalizedKeys, switches }) => { + ui.div(groupName); + normalizedKeys.forEach(key => { + const kswitch = switches[key]; + let desc = descriptions[key] || ''; + let type = null; + if (~desc.lastIndexOf(deferY18nLookupPrefix)) + desc = __(desc.substring(deferY18nLookupPrefix.length)); + if (~options.boolean.indexOf(key)) + type = `[${__('boolean')}]`; + if (~options.count.indexOf(key)) + type = `[${__('count')}]`; + if (~options.string.indexOf(key)) + type = `[${__('string')}]`; + if (~options.normalize.indexOf(key)) + type = `[${__('string')}]`; + if (~options.array.indexOf(key)) + type = `[${__('array')}]`; + if (~options.number.indexOf(key)) + type = `[${__('number')}]`; + const deprecatedExtra = (deprecated) => typeof deprecated === 'string' + ? `[${__('deprecated: %s', deprecated)}]` + : `[${__('deprecated')}]`; + const extra = [ + key in deprecatedOptions + ? deprecatedExtra(deprecatedOptions[key]) + : null, + type, + key in demandedOptions ? `[${__('required')}]` : null, + options.choices && options.choices[key] + ? `[${__('choices:')} ${self.stringifiedValues(options.choices[key])}]` + : null, + defaultString(options.default[key], options.defaultDescription[key]), + ] + .filter(Boolean) + .join(' '); + ui.span({ + text: getText(kswitch), + padding: [0, 2, 0, 2 + getIndentation(kswitch)], + width: maxWidth(switches, theWrap) + 4, + }, desc); + if (extra) + ui.div({ text: extra, padding: [0, 0, 0, 2], align: 'right' }); + else + ui.div(); + }); + ui.div(); + }); + if (examples.length) { + ui.div(__('Examples:')); + examples.forEach(example => { + example[0] = example[0].replace(/\$0/g, base$0); + }); + examples.forEach(example => { + if (example[1] === '') { + ui.div({ + text: example[0], + padding: [0, 2, 0, 2], + }); + } + else { + ui.div({ + text: example[0], + padding: [0, 2, 0, 2], + width: maxWidth(examples, theWrap) + 4, + }, { + text: example[1], + }); + } + }); + ui.div(); + } + if (epilogs.length > 0) { + const e = epilogs + .map(epilog => epilog.replace(/\$0/g, base$0)) + .join('\n'); + ui.div(`${e}\n`); + } + return ui.toString().replace(/\s*$/, ''); + }; + function maxWidth(table, theWrap, modifier) { + let width = 0; + if (!Array.isArray(table)) { + table = Object.values(table).map(v => [v]); + } + table.forEach(v => { + width = Math.max(shim.stringWidth(modifier ? `${modifier} ${getText(v[0])}` : getText(v[0])) + getIndentation(v[0]), width); + }); + if (theWrap) + width = Math.min(width, parseInt((theWrap * 0.5).toString(), 10)); + return width; + } + function normalizeAliases() { + const demandedOptions = yargs.getDemandedOptions(); + const options = yargs.getOptions(); + (Object.keys(options.alias) || []).forEach(key => { + options.alias[key].forEach(alias => { + if (descriptions[alias]) + self.describe(key, descriptions[alias]); + if (alias in demandedOptions) + yargs.demandOption(key, demandedOptions[alias]); + if (~options.boolean.indexOf(alias)) + yargs.boolean(key); + if (~options.count.indexOf(alias)) + yargs.count(key); + if (~options.string.indexOf(alias)) + yargs.string(key); + if (~options.normalize.indexOf(alias)) + yargs.normalize(key); + if (~options.array.indexOf(alias)) + yargs.array(key); + if (~options.number.indexOf(alias)) + yargs.number(key); + }); + }); + } + let cachedHelpMessage; + self.cacheHelpMessage = function () { + cachedHelpMessage = this.help(); + }; + self.clearCachedHelpMessage = function () { + cachedHelpMessage = undefined; + }; + function addUngroupedKeys(keys, aliases, groups, defaultGroup) { + let groupedKeys = []; + let toCheck = null; + Object.keys(groups).forEach(group => { + groupedKeys = groupedKeys.concat(groups[group]); + }); + keys.forEach(key => { + toCheck = [key].concat(aliases[key]); + if (!toCheck.some(k => groupedKeys.indexOf(k) !== -1)) { + groups[defaultGroup].push(key); + } + }); + return groupedKeys; + } + function filterHiddenOptions(key) { + return (yargs.getOptions().hiddenOptions.indexOf(key) < 0 || + yargs.parsed.argv[yargs.getOptions().showHiddenOpt]); + } + self.showHelp = (level) => { + const logger = yargs._getLoggerInstance(); + if (!level) + level = 'error'; + const emit = typeof level === 'function' ? level : logger[level]; + emit(self.help()); + }; + self.functionDescription = fn => { + const description = fn.name + ? shim.Parser.decamelize(fn.name, '-') + : __('generated-value'); + return ['(', description, ')'].join(''); + }; + self.stringifiedValues = function stringifiedValues(values, separator) { + let string = ''; + const sep = separator || ', '; + const array = [].concat(values); + if (!values || !array.length) + return string; + array.forEach(value => { + if (string.length) + string += sep; + string += JSON.stringify(value); + }); + return string; + }; + function defaultString(value, defaultDescription) { + let string = `[${__('default:')} `; + if (value === undefined && !defaultDescription) + return null; + if (defaultDescription) { + string += defaultDescription; + } + else { + switch (typeof value) { + case 'string': + string += `"${value}"`; + break; + case 'object': + string += JSON.stringify(value); + break; + default: + string += value; + } + } + return `${string}]`; + } + function windowWidth() { + const maxWidth = 80; + if (shim.process.stdColumns) { + return Math.min(maxWidth, shim.process.stdColumns); + } + else { + return maxWidth; + } + } + let version = null; + self.version = ver => { + version = ver; + }; + self.showVersion = () => { + const logger = yargs._getLoggerInstance(); + logger.log(version); + }; + self.reset = function reset(localLookup) { + failMessage = null; + failureOutput = false; + usages = []; + usageDisabled = false; + epilogs = []; + examples = []; + commands = []; + descriptions = objFilter(descriptions, k => !localLookup[k]); + return self; + }; + const frozens = []; + self.freeze = function freeze() { + frozens.push({ + failMessage, + failureOutput, + usages, + usageDisabled, + epilogs, + examples, + commands, + descriptions, + }); + }; + self.unfreeze = function unfreeze() { + const frozen = frozens.pop(); + assertNotStrictEqual(frozen, undefined, shim); + ({ + failMessage, + failureOutput, + usages, + usageDisabled, + epilogs, + examples, + commands, + descriptions, + } = frozen); + }; + return self; +} +function isIndentedText(text) { + return typeof text === 'object'; +} +function addIndentation(text, indent) { + return isIndentedText(text) + ? { text: text.text, indentation: text.indentation + indent } + : { text, indentation: indent }; +} +function getIndentation(text) { + return isIndentedText(text) ? text.indentation : 0; +} +function getText(text) { + return isIndentedText(text) ? text.text : text; +} + +const completionShTemplate = `###-begin-{{app_name}}-completions-### +# +# yargs command completion script +# +# Installation: {{app_path}} {{completion_command}} >> ~/.bashrc +# or {{app_path}} {{completion_command}} >> ~/.bash_profile on OSX. +# +_yargs_completions() +{ + local cur_word args type_list + + cur_word="\${COMP_WORDS[COMP_CWORD]}" + args=("\${COMP_WORDS[@]}") + + # ask yargs to generate completions. + type_list=$({{app_path}} --get-yargs-completions "\${args[@]}") + + COMPREPLY=( $(compgen -W "\${type_list}" -- \${cur_word}) ) + + # if no match was found, fall back to filename completion + if [ \${#COMPREPLY[@]} -eq 0 ]; then + COMPREPLY=() + fi + + return 0 +} +complete -o default -F _yargs_completions {{app_name}} +###-end-{{app_name}}-completions-### +`; +const completionZshTemplate = `###-begin-{{app_name}}-completions-### +# +# yargs command completion script +# +# Installation: {{app_path}} {{completion_command}} >> ~/.zshrc +# or {{app_path}} {{completion_command}} >> ~/.zsh_profile on OSX. +# +_{{app_name}}_yargs_completions() +{ + local reply + local si=$IFS + IFS=$'\n' reply=($(COMP_CWORD="$((CURRENT-1))" COMP_LINE="$BUFFER" COMP_POINT="$CURSOR" {{app_path}} --get-yargs-completions "\${words[@]}")) + IFS=$si + _describe 'values' reply +} +compdef _{{app_name}}_yargs_completions {{app_name}} +###-end-{{app_name}}-completions-### +`; + +function completion(yargs, usage, command, shim) { + const self = { + completionKey: 'get-yargs-completions', + }; + let aliases; + self.setParsed = function setParsed(parsed) { + aliases = parsed.aliases; + }; + const zshShell = (shim.getEnv('SHELL') && shim.getEnv('SHELL').indexOf('zsh') !== -1) || + (shim.getEnv('ZSH_NAME') && shim.getEnv('ZSH_NAME').indexOf('zsh') !== -1); + self.getCompletion = function getCompletion(args, done) { + const completions = []; + const current = args.length ? args[args.length - 1] : ''; + const argv = yargs.parse(args, true); + const parentCommands = yargs.getContext().commands; + function runCompletionFunction(argv) { + assertNotStrictEqual(completionFunction, null, shim); + if (isSyncCompletionFunction(completionFunction)) { + const result = completionFunction(current, argv); + if (isPromise(result)) { + return result + .then(list => { + shim.process.nextTick(() => { + done(list); + }); + }) + .catch(err => { + shim.process.nextTick(() => { + throw err; + }); + }); + } + return done(result); + } + else { + return completionFunction(current, argv, completions => { + done(completions); + }); + } + } + if (completionFunction) { + return isPromise(argv) + ? argv.then(runCompletionFunction) + : runCompletionFunction(argv); + } + const handlers = command.getCommandHandlers(); + for (let i = 0, ii = args.length; i < ii; ++i) { + if (handlers[args[i]] && handlers[args[i]].builder) { + const builder = handlers[args[i]].builder; + if (isCommandBuilderCallback(builder)) { + const y = yargs.reset(); + builder(y); + return y.argv; + } + } + } + if (!current.match(/^-/) && + parentCommands[parentCommands.length - 1] !== current) { + usage.getCommands().forEach(usageCommand => { + const commandName = parseCommand(usageCommand[0]).cmd; + if (args.indexOf(commandName) === -1) { + if (!zshShell) { + completions.push(commandName); + } + else { + const desc = usageCommand[1] || ''; + completions.push(commandName.replace(/:/g, '\\:') + ':' + desc); + } + } + }); + } + if (current.match(/^-/) || (current === '' && completions.length === 0)) { + const descs = usage.getDescriptions(); + const options = yargs.getOptions(); + Object.keys(options.key).forEach(key => { + const negable = !!options.configuration['boolean-negation'] && + options.boolean.includes(key); + let keyAndAliases = [key].concat(aliases[key] || []); + if (negable) + keyAndAliases = keyAndAliases.concat(keyAndAliases.map(key => `no-${key}`)); + function completeOptionKey(key) { + const notInArgs = keyAndAliases.every(val => args.indexOf(`--${val}`) === -1); + if (notInArgs) { + const startsByTwoDashes = (s) => /^--/.test(s); + const isShortOption = (s) => /^[^0-9]$/.test(s); + const dashes = !startsByTwoDashes(current) && isShortOption(key) ? '-' : '--'; + if (!zshShell) { + completions.push(dashes + key); + } + else { + const desc = descs[key] || ''; + completions.push(dashes + + `${key.replace(/:/g, '\\:')}:${desc.replace('__yargsString__:', '')}`); + } + } + } + completeOptionKey(key); + if (negable && !!options.default[key]) + completeOptionKey(`no-${key}`); + }); + } + done(completions); + }; + self.generateCompletionScript = function generateCompletionScript($0, cmd) { + let script = zshShell + ? completionZshTemplate + : completionShTemplate; + const name = shim.path.basename($0); + if ($0.match(/\.js$/)) + $0 = `./${$0}`; + script = script.replace(/{{app_name}}/g, name); + script = script.replace(/{{completion_command}}/g, cmd); + return script.replace(/{{app_path}}/g, $0); + }; + let completionFunction = null; + self.registerFunction = fn => { + completionFunction = fn; + }; + return self; +} +function isSyncCompletionFunction(completionFunction) { + return completionFunction.length < 3; +} + +function levenshtein(a, b) { + if (a.length === 0) + return b.length; + if (b.length === 0) + return a.length; + const matrix = []; + let i; + for (i = 0; i <= b.length; i++) { + matrix[i] = [i]; + } + let j; + for (j = 0; j <= a.length; j++) { + matrix[0][j] = j; + } + for (i = 1; i <= b.length; i++) { + for (j = 1; j <= a.length; j++) { + if (b.charAt(i - 1) === a.charAt(j - 1)) { + matrix[i][j] = matrix[i - 1][j - 1]; + } + else { + matrix[i][j] = Math.min(matrix[i - 1][j - 1] + 1, Math.min(matrix[i][j - 1] + 1, matrix[i - 1][j] + 1)); + } + } + } + return matrix[b.length][a.length]; +} + +const specialKeys = ['$0', '--', '_']; +function validation(yargs, usage, y18n, shim) { + const __ = y18n.__; + const __n = y18n.__n; + const self = {}; + self.nonOptionCount = function nonOptionCount(argv) { + const demandedCommands = yargs.getDemandedCommands(); + const positionalCount = argv._.length + (argv['--'] ? argv['--'].length : 0); + const _s = positionalCount - yargs.getContext().commands.length; + if (demandedCommands._ && + (_s < demandedCommands._.min || _s > demandedCommands._.max)) { + if (_s < demandedCommands._.min) { + if (demandedCommands._.minMsg !== undefined) { + usage.fail(demandedCommands._.minMsg + ? demandedCommands._.minMsg + .replace(/\$0/g, _s.toString()) + .replace(/\$1/, demandedCommands._.min.toString()) + : null); + } + else { + usage.fail(__n('Not enough non-option arguments: got %s, need at least %s', 'Not enough non-option arguments: got %s, need at least %s', _s, _s.toString(), demandedCommands._.min.toString())); + } + } + else if (_s > demandedCommands._.max) { + if (demandedCommands._.maxMsg !== undefined) { + usage.fail(demandedCommands._.maxMsg + ? demandedCommands._.maxMsg + .replace(/\$0/g, _s.toString()) + .replace(/\$1/, demandedCommands._.max.toString()) + : null); + } + else { + usage.fail(__n('Too many non-option arguments: got %s, maximum of %s', 'Too many non-option arguments: got %s, maximum of %s', _s, _s.toString(), demandedCommands._.max.toString())); + } + } + } + }; + self.positionalCount = function positionalCount(required, observed) { + if (observed < required) { + usage.fail(__n('Not enough non-option arguments: got %s, need at least %s', 'Not enough non-option arguments: got %s, need at least %s', observed, observed + '', required + '')); + } + }; + self.requiredArguments = function requiredArguments(argv) { + const demandedOptions = yargs.getDemandedOptions(); + let missing = null; + for (const key of Object.keys(demandedOptions)) { + if (!Object.prototype.hasOwnProperty.call(argv, key) || + typeof argv[key] === 'undefined') { + missing = missing || {}; + missing[key] = demandedOptions[key]; + } + } + if (missing) { + const customMsgs = []; + for (const key of Object.keys(missing)) { + const msg = missing[key]; + if (msg && customMsgs.indexOf(msg) < 0) { + customMsgs.push(msg); + } + } + const customMsg = customMsgs.length ? `\n${customMsgs.join('\n')}` : ''; + usage.fail(__n('Missing required argument: %s', 'Missing required arguments: %s', Object.keys(missing).length, Object.keys(missing).join(', ') + customMsg)); + } + }; + self.unknownArguments = function unknownArguments(argv, aliases, positionalMap, isDefaultCommand, checkPositionals = true) { + const commandKeys = yargs.getCommandInstance().getCommands(); + const unknown = []; + const currentContext = yargs.getContext(); + Object.keys(argv).forEach(key => { + if (specialKeys.indexOf(key) === -1 && + !Object.prototype.hasOwnProperty.call(positionalMap, key) && + !Object.prototype.hasOwnProperty.call(yargs._getParseContext(), key) && + !self.isValidAndSomeAliasIsNotNew(key, aliases)) { + unknown.push(key); + } + }); + if (checkPositionals && + (currentContext.commands.length > 0 || + commandKeys.length > 0 || + isDefaultCommand)) { + argv._.slice(currentContext.commands.length).forEach(key => { + if (commandKeys.indexOf('' + key) === -1) { + unknown.push('' + key); + } + }); + } + if (unknown.length > 0) { + usage.fail(__n('Unknown argument: %s', 'Unknown arguments: %s', unknown.length, unknown.join(', '))); + } + }; + self.unknownCommands = function unknownCommands(argv) { + const commandKeys = yargs.getCommandInstance().getCommands(); + const unknown = []; + const currentContext = yargs.getContext(); + if (currentContext.commands.length > 0 || commandKeys.length > 0) { + argv._.slice(currentContext.commands.length).forEach(key => { + if (commandKeys.indexOf('' + key) === -1) { + unknown.push('' + key); + } + }); + } + if (unknown.length > 0) { + usage.fail(__n('Unknown command: %s', 'Unknown commands: %s', unknown.length, unknown.join(', '))); + return true; + } + else { + return false; + } + }; + self.isValidAndSomeAliasIsNotNew = function isValidAndSomeAliasIsNotNew(key, aliases) { + if (!Object.prototype.hasOwnProperty.call(aliases, key)) { + return false; + } + const newAliases = yargs.parsed.newAliases; + for (const a of [key, ...aliases[key]]) { + if (!Object.prototype.hasOwnProperty.call(newAliases, a) || + !newAliases[key]) { + return true; + } + } + return false; + }; + self.limitedChoices = function limitedChoices(argv) { + const options = yargs.getOptions(); + const invalid = {}; + if (!Object.keys(options.choices).length) + return; + Object.keys(argv).forEach(key => { + if (specialKeys.indexOf(key) === -1 && + Object.prototype.hasOwnProperty.call(options.choices, key)) { + [].concat(argv[key]).forEach(value => { + if (options.choices[key].indexOf(value) === -1 && + value !== undefined) { + invalid[key] = (invalid[key] || []).concat(value); + } + }); + } + }); + const invalidKeys = Object.keys(invalid); + if (!invalidKeys.length) + return; + let msg = __('Invalid values:'); + invalidKeys.forEach(key => { + msg += `\n ${__('Argument: %s, Given: %s, Choices: %s', key, usage.stringifiedValues(invalid[key]), usage.stringifiedValues(options.choices[key]))}`; + }); + usage.fail(msg); + }; + let checks = []; + self.check = function check(f, global) { + checks.push({ + func: f, + global, + }); + }; + self.customChecks = function customChecks(argv, aliases) { + for (let i = 0, f; (f = checks[i]) !== undefined; i++) { + const func = f.func; + let result = null; + try { + result = func(argv, aliases); + } + catch (err) { + usage.fail(err.message ? err.message : err, err); + continue; + } + if (!result) { + usage.fail(__('Argument check failed: %s', func.toString())); + } + else if (typeof result === 'string' || result instanceof Error) { + usage.fail(result.toString(), result); + } + } + }; + let implied = {}; + self.implies = function implies(key, value) { + argsert(' [array|number|string]', [key, value], arguments.length); + if (typeof key === 'object') { + Object.keys(key).forEach(k => { + self.implies(k, key[k]); + }); + } + else { + yargs.global(key); + if (!implied[key]) { + implied[key] = []; + } + if (Array.isArray(value)) { + value.forEach(i => self.implies(key, i)); + } + else { + assertNotStrictEqual(value, undefined, shim); + implied[key].push(value); + } + } + }; + self.getImplied = function getImplied() { + return implied; + }; + function keyExists(argv, val) { + const num = Number(val); + val = isNaN(num) ? val : num; + if (typeof val === 'number') { + val = argv._.length >= val; + } + else if (val.match(/^--no-.+/)) { + val = val.match(/^--no-(.+)/)[1]; + val = !argv[val]; + } + else { + val = argv[val]; + } + return val; + } + self.implications = function implications(argv) { + const implyFail = []; + Object.keys(implied).forEach(key => { + const origKey = key; + (implied[key] || []).forEach(value => { + let key = origKey; + const origValue = value; + key = keyExists(argv, key); + value = keyExists(argv, value); + if (key && !value) { + implyFail.push(` ${origKey} -> ${origValue}`); + } + }); + }); + if (implyFail.length) { + let msg = `${__('Implications failed:')}\n`; + implyFail.forEach(value => { + msg += value; + }); + usage.fail(msg); + } + }; + let conflicting = {}; + self.conflicts = function conflicts(key, value) { + argsert(' [array|string]', [key, value], arguments.length); + if (typeof key === 'object') { + Object.keys(key).forEach(k => { + self.conflicts(k, key[k]); + }); + } + else { + yargs.global(key); + if (!conflicting[key]) { + conflicting[key] = []; + } + if (Array.isArray(value)) { + value.forEach(i => self.conflicts(key, i)); + } + else { + conflicting[key].push(value); + } + } + }; + self.getConflicting = () => conflicting; + self.conflicting = function conflictingFn(argv) { + Object.keys(argv).forEach(key => { + if (conflicting[key]) { + conflicting[key].forEach(value => { + if (value && argv[key] !== undefined && argv[value] !== undefined) { + usage.fail(__('Arguments %s and %s are mutually exclusive', key, value)); + } + }); + } + }); + }; + self.recommendCommands = function recommendCommands(cmd, potentialCommands) { + const threshold = 3; + potentialCommands = potentialCommands.sort((a, b) => b.length - a.length); + let recommended = null; + let bestDistance = Infinity; + for (let i = 0, candidate; (candidate = potentialCommands[i]) !== undefined; i++) { + const d = levenshtein(cmd, candidate); + if (d <= threshold && d < bestDistance) { + bestDistance = d; + recommended = candidate; + } + } + if (recommended) + usage.fail(__('Did you mean %s?', recommended)); + }; + self.reset = function reset(localLookup) { + implied = objFilter(implied, k => !localLookup[k]); + conflicting = objFilter(conflicting, k => !localLookup[k]); + checks = checks.filter(c => c.global); + return self; + }; + const frozens = []; + self.freeze = function freeze() { + frozens.push({ + implied, + checks, + conflicting, + }); + }; + self.unfreeze = function unfreeze() { + const frozen = frozens.pop(); + assertNotStrictEqual(frozen, undefined, shim); + ({ implied, checks, conflicting } = frozen); + }; + return self; +} + +let shim$1; +function YargsWithShim(_shim) { + shim$1 = _shim; + return Yargs; +} +function Yargs(processArgs = [], cwd = shim$1.process.cwd(), parentRequire) { + const self = {}; + let command$1; + let completion$1 = null; + let groups = {}; + const globalMiddleware = []; + let output = ''; + const preservedGroups = {}; + let usage$1; + let validation$1; + let handlerFinishCommand = null; + const y18n = shim$1.y18n; + self.middleware = globalMiddlewareFactory(globalMiddleware, self); + self.scriptName = function (scriptName) { + self.customScriptName = true; + self.$0 = scriptName; + return self; + }; + let default$0; + if (/\b(node|iojs|electron)(\.exe)?$/.test(shim$1.process.argv()[0])) { + default$0 = shim$1.process.argv().slice(1, 2); + } + else { + default$0 = shim$1.process.argv().slice(0, 1); + } + self.$0 = default$0 + .map(x => { + const b = rebase(cwd, x); + return x.match(/^(\/|([a-zA-Z]:)?\\)/) && b.length < x.length ? b : x; + }) + .join(' ') + .trim(); + if (shim$1.getEnv('_') && shim$1.getProcessArgvBin() === shim$1.getEnv('_')) { + self.$0 = shim$1 + .getEnv('_') + .replace(`${shim$1.path.dirname(shim$1.process.execPath())}/`, ''); + } + const context = { resets: -1, commands: [], fullCommands: [], files: [] }; + self.getContext = () => context; + let hasOutput = false; + let exitError = null; + self.exit = (code, err) => { + hasOutput = true; + exitError = err; + if (exitProcess) + shim$1.process.exit(code); + }; + let completionCommand = null; + self.completion = function (cmd, desc, fn) { + argsert('[string] [string|boolean|function] [function]', [cmd, desc, fn], arguments.length); + if (typeof desc === 'function') { + fn = desc; + desc = undefined; + } + completionCommand = cmd || completionCommand || 'completion'; + if (!desc && desc !== false) { + desc = 'generate completion script'; + } + self.command(completionCommand, desc); + if (fn) + completion$1.registerFunction(fn); + return self; + }; + let options; + self.resetOptions = self.reset = function resetOptions(aliases = {}) { + context.resets++; + options = options || {}; + const tmpOptions = {}; + tmpOptions.local = options.local ? options.local : []; + tmpOptions.configObjects = options.configObjects + ? options.configObjects + : []; + const localLookup = {}; + tmpOptions.local.forEach(l => { + localLookup[l] = true; + (aliases[l] || []).forEach(a => { + localLookup[a] = true; + }); + }); + Object.assign(preservedGroups, Object.keys(groups).reduce((acc, groupName) => { + const keys = groups[groupName].filter(key => !(key in localLookup)); + if (keys.length > 0) { + acc[groupName] = keys; + } + return acc; + }, {})); + groups = {}; + const arrayOptions = [ + 'array', + 'boolean', + 'string', + 'skipValidation', + 'count', + 'normalize', + 'number', + 'hiddenOptions', + ]; + const objectOptions = [ + 'narg', + 'key', + 'alias', + 'default', + 'defaultDescription', + 'config', + 'choices', + 'demandedOptions', + 'demandedCommands', + 'coerce', + 'deprecatedOptions', + ]; + arrayOptions.forEach(k => { + tmpOptions[k] = (options[k] || []).filter((k) => !localLookup[k]); + }); + objectOptions.forEach((k) => { + tmpOptions[k] = objFilter(options[k], k => !localLookup[k]); + }); + tmpOptions.envPrefix = options.envPrefix; + options = tmpOptions; + usage$1 = usage$1 ? usage$1.reset(localLookup) : usage(self, y18n, shim$1); + validation$1 = validation$1 + ? validation$1.reset(localLookup) + : validation(self, usage$1, y18n, shim$1); + command$1 = command$1 + ? command$1.reset() + : command(self, usage$1, validation$1, globalMiddleware, shim$1); + if (!completion$1) + completion$1 = completion(self, usage$1, command$1, shim$1); + completionCommand = null; + output = ''; + exitError = null; + hasOutput = false; + self.parsed = false; + return self; + }; + self.resetOptions(); + const frozens = []; + function freeze() { + frozens.push({ + options, + configObjects: options.configObjects.slice(0), + exitProcess, + groups, + strict, + strictCommands, + strictOptions, + completionCommand, + output, + exitError, + hasOutput, + parsed: self.parsed, + parseFn, + parseContext, + handlerFinishCommand, + }); + usage$1.freeze(); + validation$1.freeze(); + command$1.freeze(); + } + function unfreeze() { + const frozen = frozens.pop(); + assertNotStrictEqual(frozen, undefined, shim$1); + let configObjects; + ({ + options, + configObjects, + exitProcess, + groups, + output, + exitError, + hasOutput, + parsed: self.parsed, + strict, + strictCommands, + strictOptions, + completionCommand, + parseFn, + parseContext, + handlerFinishCommand, + } = frozen); + options.configObjects = configObjects; + usage$1.unfreeze(); + validation$1.unfreeze(); + command$1.unfreeze(); + } + self.boolean = function (keys) { + argsert('', [keys], arguments.length); + populateParserHintArray('boolean', keys); + return self; + }; + self.array = function (keys) { + argsert('', [keys], arguments.length); + populateParserHintArray('array', keys); + return self; + }; + self.number = function (keys) { + argsert('', [keys], arguments.length); + populateParserHintArray('number', keys); + return self; + }; + self.normalize = function (keys) { + argsert('', [keys], arguments.length); + populateParserHintArray('normalize', keys); + return self; + }; + self.count = function (keys) { + argsert('', [keys], arguments.length); + populateParserHintArray('count', keys); + return self; + }; + self.string = function (keys) { + argsert('', [keys], arguments.length); + populateParserHintArray('string', keys); + return self; + }; + self.requiresArg = function (keys) { + argsert(' [number]', [keys], arguments.length); + if (typeof keys === 'string' && options.narg[keys]) { + return self; + } + else { + populateParserHintSingleValueDictionary(self.requiresArg, 'narg', keys, NaN); + } + return self; + }; + self.skipValidation = function (keys) { + argsert('', [keys], arguments.length); + populateParserHintArray('skipValidation', keys); + return self; + }; + function populateParserHintArray(type, keys) { + keys = [].concat(keys); + keys.forEach(key => { + key = sanitizeKey(key); + options[type].push(key); + }); + } + self.nargs = function (key, value) { + argsert(' [number]', [key, value], arguments.length); + populateParserHintSingleValueDictionary(self.nargs, 'narg', key, value); + return self; + }; + self.choices = function (key, value) { + argsert(' [string|array]', [key, value], arguments.length); + populateParserHintArrayDictionary(self.choices, 'choices', key, value); + return self; + }; + self.alias = function (key, value) { + argsert(' [string|array]', [key, value], arguments.length); + populateParserHintArrayDictionary(self.alias, 'alias', key, value); + return self; + }; + self.default = self.defaults = function (key, value, defaultDescription) { + argsert(' [*] [string]', [key, value, defaultDescription], arguments.length); + if (defaultDescription) { + assertSingleKey(key, shim$1); + options.defaultDescription[key] = defaultDescription; + } + if (typeof value === 'function') { + assertSingleKey(key, shim$1); + if (!options.defaultDescription[key]) + options.defaultDescription[key] = usage$1.functionDescription(value); + value = value.call(); + } + populateParserHintSingleValueDictionary(self.default, 'default', key, value); + return self; + }; + self.describe = function (key, desc) { + argsert(' [string]', [key, desc], arguments.length); + setKey(key, true); + usage$1.describe(key, desc); + return self; + }; + function setKey(key, set) { + populateParserHintSingleValueDictionary(setKey, 'key', key, set); + return self; + } + function demandOption(keys, msg) { + argsert(' [string]', [keys, msg], arguments.length); + populateParserHintSingleValueDictionary(self.demandOption, 'demandedOptions', keys, msg); + return self; + } + self.demandOption = demandOption; + self.coerce = function (keys, value) { + argsert(' [function]', [keys, value], arguments.length); + populateParserHintSingleValueDictionary(self.coerce, 'coerce', keys, value); + return self; + }; + function populateParserHintSingleValueDictionary(builder, type, key, value) { + populateParserHintDictionary(builder, type, key, value, (type, key, value) => { + options[type][key] = value; + }); + } + function populateParserHintArrayDictionary(builder, type, key, value) { + populateParserHintDictionary(builder, type, key, value, (type, key, value) => { + options[type][key] = (options[type][key] || []).concat(value); + }); + } + function populateParserHintDictionary(builder, type, key, value, singleKeyHandler) { + if (Array.isArray(key)) { + key.forEach(k => { + builder(k, value); + }); + } + else if (((key) => typeof key === 'object')(key)) { + for (const k of objectKeys(key)) { + builder(k, key[k]); + } + } + else { + singleKeyHandler(type, sanitizeKey(key), value); + } + } + function sanitizeKey(key) { + if (key === '__proto__') + return '___proto___'; + return key; + } + function deleteFromParserHintObject(optionKey) { + objectKeys(options).forEach((hintKey) => { + if (((key) => key === 'configObjects')(hintKey)) + return; + const hint = options[hintKey]; + if (Array.isArray(hint)) { + if (~hint.indexOf(optionKey)) + hint.splice(hint.indexOf(optionKey), 1); + } + else if (typeof hint === 'object') { + delete hint[optionKey]; + } + }); + delete usage$1.getDescriptions()[optionKey]; + } + self.config = function config(key = 'config', msg, parseFn) { + argsert('[object|string] [string|function] [function]', [key, msg, parseFn], arguments.length); + if (typeof key === 'object' && !Array.isArray(key)) { + key = applyExtends(key, cwd, self.getParserConfiguration()['deep-merge-config'] || false, shim$1); + options.configObjects = (options.configObjects || []).concat(key); + return self; + } + if (typeof msg === 'function') { + parseFn = msg; + msg = undefined; + } + self.describe(key, msg || usage$1.deferY18nLookup('Path to JSON config file')); + (Array.isArray(key) ? key : [key]).forEach(k => { + options.config[k] = parseFn || true; + }); + return self; + }; + self.example = function (cmd, description) { + argsert(' [string]', [cmd, description], arguments.length); + if (Array.isArray(cmd)) { + cmd.forEach(exampleParams => self.example(...exampleParams)); + } + else { + usage$1.example(cmd, description); + } + return self; + }; + self.command = function (cmd, description, builder, handler, middlewares, deprecated) { + argsert(' [string|boolean] [function|object] [function] [array] [boolean|string]', [cmd, description, builder, handler, middlewares, deprecated], arguments.length); + command$1.addHandler(cmd, description, builder, handler, middlewares, deprecated); + return self; + }; + self.commandDir = function (dir, opts) { + argsert(' [object]', [dir, opts], arguments.length); + const req = parentRequire || shim$1.require; + command$1.addDirectory(dir, self.getContext(), req, shim$1.getCallerFile(), opts); + return self; + }; + self.demand = self.required = self.require = function demand(keys, max, msg) { + if (Array.isArray(max)) { + max.forEach(key => { + assertNotStrictEqual(msg, true, shim$1); + demandOption(key, msg); + }); + max = Infinity; + } + else if (typeof max !== 'number') { + msg = max; + max = Infinity; + } + if (typeof keys === 'number') { + assertNotStrictEqual(msg, true, shim$1); + self.demandCommand(keys, max, msg, msg); + } + else if (Array.isArray(keys)) { + keys.forEach(key => { + assertNotStrictEqual(msg, true, shim$1); + demandOption(key, msg); + }); + } + else { + if (typeof msg === 'string') { + demandOption(keys, msg); + } + else if (msg === true || typeof msg === 'undefined') { + demandOption(keys); + } + } + return self; + }; + self.demandCommand = function demandCommand(min = 1, max, minMsg, maxMsg) { + argsert('[number] [number|string] [string|null|undefined] [string|null|undefined]', [min, max, minMsg, maxMsg], arguments.length); + if (typeof max !== 'number') { + minMsg = max; + max = Infinity; + } + self.global('_', false); + options.demandedCommands._ = { + min, + max, + minMsg, + maxMsg, + }; + return self; + }; + self.getDemandedOptions = () => { + argsert([], 0); + return options.demandedOptions; + }; + self.getDemandedCommands = () => { + argsert([], 0); + return options.demandedCommands; + }; + self.deprecateOption = function deprecateOption(option, message) { + argsert(' [string|boolean]', [option, message], arguments.length); + options.deprecatedOptions[option] = message; + return self; + }; + self.getDeprecatedOptions = () => { + argsert([], 0); + return options.deprecatedOptions; + }; + self.implies = function (key, value) { + argsert(' [number|string|array]', [key, value], arguments.length); + validation$1.implies(key, value); + return self; + }; + self.conflicts = function (key1, key2) { + argsert(' [string|array]', [key1, key2], arguments.length); + validation$1.conflicts(key1, key2); + return self; + }; + self.usage = function (msg, description, builder, handler) { + argsert(' [string|boolean] [function|object] [function]', [msg, description, builder, handler], arguments.length); + if (description !== undefined) { + assertNotStrictEqual(msg, null, shim$1); + if ((msg || '').match(/^\$0( |$)/)) { + return self.command(msg, description, builder, handler); + } + else { + throw new YError('.usage() description must start with $0 if being used as alias for .command()'); + } + } + else { + usage$1.usage(msg); + return self; + } + }; + self.epilogue = self.epilog = function (msg) { + argsert('', [msg], arguments.length); + usage$1.epilog(msg); + return self; + }; + self.fail = function (f) { + argsert('', [f], arguments.length); + usage$1.failFn(f); + return self; + }; + self.onFinishCommand = function (f) { + argsert('', [f], arguments.length); + handlerFinishCommand = f; + return self; + }; + self.getHandlerFinishCommand = () => handlerFinishCommand; + self.check = function (f, _global) { + argsert(' [boolean]', [f, _global], arguments.length); + validation$1.check(f, _global !== false); + return self; + }; + self.global = function global(globals, global) { + argsert(' [boolean]', [globals, global], arguments.length); + globals = [].concat(globals); + if (global !== false) { + options.local = options.local.filter(l => globals.indexOf(l) === -1); + } + else { + globals.forEach(g => { + if (options.local.indexOf(g) === -1) + options.local.push(g); + }); + } + return self; + }; + self.pkgConf = function pkgConf(key, rootPath) { + argsert(' [string]', [key, rootPath], arguments.length); + let conf = null; + const obj = pkgUp(rootPath || cwd); + if (obj[key] && typeof obj[key] === 'object') { + conf = applyExtends(obj[key], rootPath || cwd, self.getParserConfiguration()['deep-merge-config'] || false, shim$1); + options.configObjects = (options.configObjects || []).concat(conf); + } + return self; + }; + const pkgs = {}; + function pkgUp(rootPath) { + const npath = rootPath || '*'; + if (pkgs[npath]) + return pkgs[npath]; + let obj = {}; + try { + let startDir = rootPath || shim$1.mainFilename; + if (!rootPath && shim$1.path.extname(startDir)) { + startDir = shim$1.path.dirname(startDir); + } + const pkgJsonPath = shim$1.findUp(startDir, (dir, names) => { + if (names.includes('package.json')) { + return 'package.json'; + } + else { + return undefined; + } + }); + assertNotStrictEqual(pkgJsonPath, undefined, shim$1); + obj = JSON.parse(shim$1.readFileSync(pkgJsonPath, 'utf8')); + } + catch (_noop) { } + pkgs[npath] = obj || {}; + return pkgs[npath]; + } + let parseFn = null; + let parseContext = null; + self.parse = function parse(args, shortCircuit, _parseFn) { + argsert('[string|array] [function|boolean|object] [function]', [args, shortCircuit, _parseFn], arguments.length); + freeze(); + if (typeof args === 'undefined') { + const argv = self._parseArgs(processArgs); + const tmpParsed = self.parsed; + unfreeze(); + self.parsed = tmpParsed; + return argv; + } + if (typeof shortCircuit === 'object') { + parseContext = shortCircuit; + shortCircuit = _parseFn; + } + if (typeof shortCircuit === 'function') { + parseFn = shortCircuit; + shortCircuit = false; + } + if (!shortCircuit) + processArgs = args; + if (parseFn) + exitProcess = false; + const parsed = self._parseArgs(args, !!shortCircuit); + completion$1.setParsed(self.parsed); + if (parseFn) + parseFn(exitError, parsed, output); + unfreeze(); + return parsed; + }; + self._getParseContext = () => parseContext || {}; + self._hasParseCallback = () => !!parseFn; + self.option = self.options = function option(key, opt) { + argsert(' [object]', [key, opt], arguments.length); + if (typeof key === 'object') { + Object.keys(key).forEach(k => { + self.options(k, key[k]); + }); + } + else { + if (typeof opt !== 'object') { + opt = {}; + } + options.key[key] = true; + if (opt.alias) + self.alias(key, opt.alias); + const deprecate = opt.deprecate || opt.deprecated; + if (deprecate) { + self.deprecateOption(key, deprecate); + } + const demand = opt.demand || opt.required || opt.require; + if (demand) { + self.demand(key, demand); + } + if (opt.demandOption) { + self.demandOption(key, typeof opt.demandOption === 'string' ? opt.demandOption : undefined); + } + if (opt.conflicts) { + self.conflicts(key, opt.conflicts); + } + if ('default' in opt) { + self.default(key, opt.default); + } + if (opt.implies !== undefined) { + self.implies(key, opt.implies); + } + if (opt.nargs !== undefined) { + self.nargs(key, opt.nargs); + } + if (opt.config) { + self.config(key, opt.configParser); + } + if (opt.normalize) { + self.normalize(key); + } + if (opt.choices) { + self.choices(key, opt.choices); + } + if (opt.coerce) { + self.coerce(key, opt.coerce); + } + if (opt.group) { + self.group(key, opt.group); + } + if (opt.boolean || opt.type === 'boolean') { + self.boolean(key); + if (opt.alias) + self.boolean(opt.alias); + } + if (opt.array || opt.type === 'array') { + self.array(key); + if (opt.alias) + self.array(opt.alias); + } + if (opt.number || opt.type === 'number') { + self.number(key); + if (opt.alias) + self.number(opt.alias); + } + if (opt.string || opt.type === 'string') { + self.string(key); + if (opt.alias) + self.string(opt.alias); + } + if (opt.count || opt.type === 'count') { + self.count(key); + } + if (typeof opt.global === 'boolean') { + self.global(key, opt.global); + } + if (opt.defaultDescription) { + options.defaultDescription[key] = opt.defaultDescription; + } + if (opt.skipValidation) { + self.skipValidation(key); + } + const desc = opt.describe || opt.description || opt.desc; + self.describe(key, desc); + if (opt.hidden) { + self.hide(key); + } + if (opt.requiresArg) { + self.requiresArg(key); + } + } + return self; + }; + self.getOptions = () => options; + self.positional = function (key, opts) { + argsert(' ', [key, opts], arguments.length); + if (context.resets === 0) { + throw new YError(".positional() can only be called in a command's builder function"); + } + const supportedOpts = [ + 'default', + 'defaultDescription', + 'implies', + 'normalize', + 'choices', + 'conflicts', + 'coerce', + 'type', + 'describe', + 'desc', + 'description', + 'alias', + ]; + opts = objFilter(opts, (k, v) => { + let accept = supportedOpts.indexOf(k) !== -1; + if (k === 'type' && ['string', 'number', 'boolean'].indexOf(v) === -1) + accept = false; + return accept; + }); + const fullCommand = context.fullCommands[context.fullCommands.length - 1]; + const parseOptions = fullCommand + ? command$1.cmdToParseOptions(fullCommand) + : { + array: [], + alias: {}, + default: {}, + demand: {}, + }; + objectKeys(parseOptions).forEach(pk => { + const parseOption = parseOptions[pk]; + if (Array.isArray(parseOption)) { + if (parseOption.indexOf(key) !== -1) + opts[pk] = true; + } + else { + if (parseOption[key] && !(pk in opts)) + opts[pk] = parseOption[key]; + } + }); + self.group(key, usage$1.getPositionalGroupName()); + return self.option(key, opts); + }; + self.group = function group(opts, groupName) { + argsert(' ', [opts, groupName], arguments.length); + const existing = preservedGroups[groupName] || groups[groupName]; + if (preservedGroups[groupName]) { + delete preservedGroups[groupName]; + } + const seen = {}; + groups[groupName] = (existing || []).concat(opts).filter(key => { + if (seen[key]) + return false; + return (seen[key] = true); + }); + return self; + }; + self.getGroups = () => Object.assign({}, groups, preservedGroups); + self.env = function (prefix) { + argsert('[string|boolean]', [prefix], arguments.length); + if (prefix === false) + delete options.envPrefix; + else + options.envPrefix = prefix || ''; + return self; + }; + self.wrap = function (cols) { + argsert('', [cols], arguments.length); + usage$1.wrap(cols); + return self; + }; + let strict = false; + self.strict = function (enabled) { + argsert('[boolean]', [enabled], arguments.length); + strict = enabled !== false; + return self; + }; + self.getStrict = () => strict; + let strictCommands = false; + self.strictCommands = function (enabled) { + argsert('[boolean]', [enabled], arguments.length); + strictCommands = enabled !== false; + return self; + }; + self.getStrictCommands = () => strictCommands; + let strictOptions = false; + self.strictOptions = function (enabled) { + argsert('[boolean]', [enabled], arguments.length); + strictOptions = enabled !== false; + return self; + }; + self.getStrictOptions = () => strictOptions; + let parserConfig = {}; + self.parserConfiguration = function parserConfiguration(config) { + argsert('', [config], arguments.length); + parserConfig = config; + return self; + }; + self.getParserConfiguration = () => parserConfig; + self.showHelp = function (level) { + argsert('[string|function]', [level], arguments.length); + if (!self.parsed) + self._parseArgs(processArgs); + if (command$1.hasDefaultCommand()) { + context.resets++; + command$1.runDefaultBuilderOn(self); + } + usage$1.showHelp(level); + return self; + }; + let versionOpt = null; + self.version = function version(opt, msg, ver) { + const defaultVersionOpt = 'version'; + argsert('[boolean|string] [string] [string]', [opt, msg, ver], arguments.length); + if (versionOpt) { + deleteFromParserHintObject(versionOpt); + usage$1.version(undefined); + versionOpt = null; + } + if (arguments.length === 0) { + ver = guessVersion(); + opt = defaultVersionOpt; + } + else if (arguments.length === 1) { + if (opt === false) { + return self; + } + ver = opt; + opt = defaultVersionOpt; + } + else if (arguments.length === 2) { + ver = msg; + msg = undefined; + } + versionOpt = typeof opt === 'string' ? opt : defaultVersionOpt; + msg = msg || usage$1.deferY18nLookup('Show version number'); + usage$1.version(ver || undefined); + self.boolean(versionOpt); + self.describe(versionOpt, msg); + return self; + }; + function guessVersion() { + const obj = pkgUp(); + return obj.version || 'unknown'; + } + let helpOpt = null; + self.addHelpOpt = self.help = function addHelpOpt(opt, msg) { + const defaultHelpOpt = 'help'; + argsert('[string|boolean] [string]', [opt, msg], arguments.length); + if (helpOpt) { + deleteFromParserHintObject(helpOpt); + helpOpt = null; + } + if (arguments.length === 1) { + if (opt === false) + return self; + } + helpOpt = typeof opt === 'string' ? opt : defaultHelpOpt; + self.boolean(helpOpt); + self.describe(helpOpt, msg || usage$1.deferY18nLookup('Show help')); + return self; + }; + const defaultShowHiddenOpt = 'show-hidden'; + options.showHiddenOpt = defaultShowHiddenOpt; + self.addShowHiddenOpt = self.showHidden = function addShowHiddenOpt(opt, msg) { + argsert('[string|boolean] [string]', [opt, msg], arguments.length); + if (arguments.length === 1) { + if (opt === false) + return self; + } + const showHiddenOpt = typeof opt === 'string' ? opt : defaultShowHiddenOpt; + self.boolean(showHiddenOpt); + self.describe(showHiddenOpt, msg || usage$1.deferY18nLookup('Show hidden options')); + options.showHiddenOpt = showHiddenOpt; + return self; + }; + self.hide = function hide(key) { + argsert('', [key], arguments.length); + options.hiddenOptions.push(key); + return self; + }; + self.showHelpOnFail = function showHelpOnFail(enabled, message) { + argsert('[boolean|string] [string]', [enabled, message], arguments.length); + usage$1.showHelpOnFail(enabled, message); + return self; + }; + let exitProcess = true; + self.exitProcess = function (enabled = true) { + argsert('[boolean]', [enabled], arguments.length); + exitProcess = enabled; + return self; + }; + self.getExitProcess = () => exitProcess; + self.showCompletionScript = function ($0, cmd) { + argsert('[string] [string]', [$0, cmd], arguments.length); + $0 = $0 || self.$0; + _logger.log(completion$1.generateCompletionScript($0, cmd || completionCommand || 'completion')); + return self; + }; + self.getCompletion = function (args, done) { + argsert(' ', [args, done], arguments.length); + completion$1.getCompletion(args, done); + }; + self.locale = function (locale) { + argsert('[string]', [locale], arguments.length); + if (!locale) { + guessLocale(); + return y18n.getLocale(); + } + detectLocale = false; + y18n.setLocale(locale); + return self; + }; + self.updateStrings = self.updateLocale = function (obj) { + argsert('', [obj], arguments.length); + detectLocale = false; + y18n.updateLocale(obj); + return self; + }; + let detectLocale = true; + self.detectLocale = function (detect) { + argsert('', [detect], arguments.length); + detectLocale = detect; + return self; + }; + self.getDetectLocale = () => detectLocale; + const _logger = { + log(...args) { + if (!self._hasParseCallback()) + console.log(...args); + hasOutput = true; + if (output.length) + output += '\n'; + output += args.join(' '); + }, + error(...args) { + if (!self._hasParseCallback()) + console.error(...args); + hasOutput = true; + if (output.length) + output += '\n'; + output += args.join(' '); + }, + }; + self._getLoggerInstance = () => _logger; + self._hasOutput = () => hasOutput; + self._setHasOutput = () => { + hasOutput = true; + }; + let recommendCommands; + self.recommendCommands = function (recommend = true) { + argsert('[boolean]', [recommend], arguments.length); + recommendCommands = recommend; + return self; + }; + self.getUsageInstance = () => usage$1; + self.getValidationInstance = () => validation$1; + self.getCommandInstance = () => command$1; + self.terminalWidth = () => { + argsert([], 0); + return shim$1.process.stdColumns; + }; + Object.defineProperty(self, 'argv', { + get: () => self._parseArgs(processArgs), + enumerable: true, + }); + self._parseArgs = function parseArgs(args, shortCircuit, _calledFromCommand, commandIndex) { + let skipValidation = !!_calledFromCommand; + args = args || processArgs; + options.__ = y18n.__; + options.configuration = self.getParserConfiguration(); + const populateDoubleDash = !!options.configuration['populate--']; + const config = Object.assign({}, options.configuration, { + 'populate--': true, + }); + const parsed = shim$1.Parser.detailed(args, Object.assign({}, options, { + configuration: Object.assign({ 'parse-positional-numbers': false }, config), + })); + let argv = parsed.argv; + if (parseContext) + argv = Object.assign({}, argv, parseContext); + const aliases = parsed.aliases; + argv.$0 = self.$0; + self.parsed = parsed; + try { + guessLocale(); + if (shortCircuit) { + return self._postProcess(argv, populateDoubleDash, _calledFromCommand); + } + if (helpOpt) { + const helpCmds = [helpOpt] + .concat(aliases[helpOpt] || []) + .filter(k => k.length > 1); + if (~helpCmds.indexOf('' + argv._[argv._.length - 1])) { + argv._.pop(); + argv[helpOpt] = true; + } + } + const handlerKeys = command$1.getCommands(); + const requestCompletions = completion$1.completionKey in argv; + const skipRecommendation = argv[helpOpt] || requestCompletions; + const skipDefaultCommand = skipRecommendation && + (handlerKeys.length > 1 || handlerKeys[0] !== '$0'); + if (argv._.length) { + if (handlerKeys.length) { + let firstUnknownCommand; + for (let i = commandIndex || 0, cmd; argv._[i] !== undefined; i++) { + cmd = String(argv._[i]); + if (~handlerKeys.indexOf(cmd) && cmd !== completionCommand) { + const innerArgv = command$1.runCommand(cmd, self, parsed, i + 1); + return self._postProcess(innerArgv, populateDoubleDash); + } + else if (!firstUnknownCommand && cmd !== completionCommand) { + firstUnknownCommand = cmd; + break; + } + } + if (command$1.hasDefaultCommand() && !skipDefaultCommand) { + const innerArgv = command$1.runCommand(null, self, parsed); + return self._postProcess(innerArgv, populateDoubleDash); + } + if (recommendCommands && firstUnknownCommand && !skipRecommendation) { + validation$1.recommendCommands(firstUnknownCommand, handlerKeys); + } + } + if (completionCommand && + ~argv._.indexOf(completionCommand) && + !requestCompletions) { + if (exitProcess) + setBlocking(true); + self.showCompletionScript(); + self.exit(0); + } + } + else if (command$1.hasDefaultCommand() && !skipDefaultCommand) { + const innerArgv = command$1.runCommand(null, self, parsed); + return self._postProcess(innerArgv, populateDoubleDash); + } + if (requestCompletions) { + if (exitProcess) + setBlocking(true); + args = [].concat(args); + const completionArgs = args.slice(args.indexOf(`--${completion$1.completionKey}`) + 1); + completion$1.getCompletion(completionArgs, completions => { + (completions || []).forEach(completion => { + _logger.log(completion); + }); + self.exit(0); + }); + return self._postProcess(argv, !populateDoubleDash, _calledFromCommand); + } + if (!hasOutput) { + Object.keys(argv).forEach(key => { + if (key === helpOpt && argv[key]) { + if (exitProcess) + setBlocking(true); + skipValidation = true; + self.showHelp('log'); + self.exit(0); + } + else if (key === versionOpt && argv[key]) { + if (exitProcess) + setBlocking(true); + skipValidation = true; + usage$1.showVersion(); + self.exit(0); + } + }); + } + if (!skipValidation && options.skipValidation.length > 0) { + skipValidation = Object.keys(argv).some(key => options.skipValidation.indexOf(key) >= 0 && argv[key] === true); + } + if (!skipValidation) { + if (parsed.error) + throw new YError(parsed.error.message); + if (!requestCompletions) { + self._runValidation(argv, aliases, {}, parsed.error); + } + } + } + catch (err) { + if (err instanceof YError) + usage$1.fail(err.message, err); + else + throw err; + } + return self._postProcess(argv, populateDoubleDash, _calledFromCommand); + }; + self._postProcess = function (argv, populateDoubleDash, calledFromCommand = false) { + if (isPromise(argv)) + return argv; + if (calledFromCommand) + return argv; + if (!populateDoubleDash) { + argv = self._copyDoubleDash(argv); + } + const parsePositionalNumbers = self.getParserConfiguration()['parse-positional-numbers'] || + self.getParserConfiguration()['parse-positional-numbers'] === undefined; + if (parsePositionalNumbers) { + argv = self._parsePositionalNumbers(argv); + } + return argv; + }; + self._copyDoubleDash = function (argv) { + if (!argv._ || !argv['--']) + return argv; + argv._.push.apply(argv._, argv['--']); + try { + delete argv['--']; + } + catch (_err) { } + return argv; + }; + self._parsePositionalNumbers = function (argv) { + const args = argv['--'] ? argv['--'] : argv._; + for (let i = 0, arg; (arg = args[i]) !== undefined; i++) { + if (shim$1.Parser.looksLikeNumber(arg) && + Number.isSafeInteger(Math.floor(parseFloat(`${arg}`)))) { + args[i] = Number(arg); + } + } + return argv; + }; + self._runValidation = function runValidation(argv, aliases, positionalMap, parseErrors, isDefaultCommand = false) { + if (parseErrors) + throw new YError(parseErrors.message); + validation$1.nonOptionCount(argv); + validation$1.requiredArguments(argv); + let failedStrictCommands = false; + if (strictCommands) { + failedStrictCommands = validation$1.unknownCommands(argv); + } + if (strict && !failedStrictCommands) { + validation$1.unknownArguments(argv, aliases, positionalMap, isDefaultCommand); + } + else if (strictOptions) { + validation$1.unknownArguments(argv, aliases, {}, false, false); + } + validation$1.customChecks(argv, aliases); + validation$1.limitedChoices(argv); + validation$1.implications(argv); + validation$1.conflicting(argv); + }; + function guessLocale() { + if (!detectLocale) + return; + const locale = shim$1.getEnv('LC_ALL') || + shim$1.getEnv('LC_MESSAGES') || + shim$1.getEnv('LANG') || + shim$1.getEnv('LANGUAGE') || + 'en_US'; + self.locale(locale.replace(/[.:].*/, '')); + } + self.help(); + self.version(); + return self; +} +const rebase = (base, dir) => shim$1.path.relative(base, dir); +function isYargsInstance(y) { + return !!y && typeof y._parseArgs === 'function'; +} + +var _a, _b; +const { readFileSync } = __webpack_require__(747); +const { inspect } = __webpack_require__(669); +const { resolve } = __webpack_require__(277); +const y18n = __webpack_require__(707); +const Parser = __webpack_require__(88); +var cjsPlatformShim = { + assert: { + notStrictEqual: assert.notStrictEqual, + strictEqual: assert.strictEqual, + }, + cliui: __webpack_require__(290), + findUp: __webpack_require__(5), + getEnv: (key) => { + return process.env[key]; + }, + getCallerFile: __webpack_require__(127), + getProcessArgvBin: getProcessArgvBin, + inspect, + mainFilename: (_b = (_a = __webpack_require__(167) === null || __webpack_require__(167) === void 0 ? void 0 : __webpack_require__.c[__webpack_require__.s]) === null || _a === void 0 ? void 0 : _a.filename) !== null && _b !== void 0 ? _b : process.cwd(), + Parser, + path: __webpack_require__(277), + process: { + argv: () => process.argv, + cwd: process.cwd, + execPath: () => process.execPath, + exit: (code) => { + process.exit(code); + }, + nextTick: process.nextTick, + stdColumns: typeof process.stdout.columns !== 'undefined' + ? process.stdout.columns + : null, + }, + readFileSync, + require: __webpack_require__(167), + requireDirectory: __webpack_require__(822), + stringWidth: __webpack_require__(987), + y18n: y18n({ + directory: resolve(__dirname, '../locales'), + updateFiles: false, + }), +}; + +const minNodeVersion = process && process.env && process.env.YARGS_MIN_NODE_VERSION + ? Number(process.env.YARGS_MIN_NODE_VERSION) + : 10; +if (process && process.version) { + const major = Number(process.version.match(/v([^.]+)/)[1]); + if (major < minNodeVersion) { + throw Error(`yargs supports a minimum Node.js version of ${minNodeVersion}. Read our version support policy: https://github.com/yargs/yargs#supported-nodejs-versions`); + } +} +const Parser$1 = __webpack_require__(88); +const Yargs$1 = YargsWithShim(cjsPlatformShim); +var cjs = { + applyExtends, + cjsPlatformShim, + Yargs: Yargs$1, + argsert, + globalMiddlewareFactory, + isPromise, + objFilter, + parseCommand, + Parser: Parser$1, + processArgv, + rebase, + YError, +}; + +module.exports = cjs; + + +/***/ }), + +/***/ 747: +/***/ (function(module) { + +module.exports = require("fs"); + +/***/ }), + +/***/ 752: +/***/ (function(module) { + +"use strict"; + + +module.exports = function isCancel(value) { + return !!(value && value.__CANCEL__); +}; + + +/***/ }), + +/***/ 761: +/***/ (function(module) { + +module.exports = require("zlib"); + +/***/ }), + +/***/ 766: +/***/ (function(module) { + +"use strict"; + + +/** + * Determines whether the specified URL is absolute + * + * @param {string} url The URL to test + * @returns {boolean} True if the specified URL is absolute, otherwise false + */ +module.exports = function isAbsoluteURL(url) { + // A URL is considered absolute if it begins with "://" or "//" (protocol-relative URL). + // RFC 3986 defines scheme name as a sequence of characters beginning with a letter and followed + // by any combination of letters, digits, plus, period, or hyphen. + return /^([a-z][a-z\d\+\-\.]*:)?\/\//i.test(url); +}; + + +/***/ }), + +/***/ 781: +/***/ (function(module, __unusedexports, __webpack_require__) { + +"use strict"; + + +var utils = __webpack_require__(318); + +/** + * Config-specific merge-function which creates a new config-object + * by merging two configuration objects together. + * + * @param {Object} config1 + * @param {Object} config2 + * @returns {Object} New object resulting from merging config2 to config1 + */ +module.exports = function mergeConfig(config1, config2) { + // eslint-disable-next-line no-param-reassign + config2 = config2 || {}; + var config = {}; + + var valueFromConfig2Keys = ['url', 'method', 'data']; + var mergeDeepPropertiesKeys = ['headers', 'auth', 'proxy', 'params']; + var defaultToConfig2Keys = [ + 'baseURL', 'transformRequest', 'transformResponse', 'paramsSerializer', + 'timeout', 'timeoutMessage', 'withCredentials', 'adapter', 'responseType', 'xsrfCookieName', + 'xsrfHeaderName', 'onUploadProgress', 'onDownloadProgress', 'decompress', + 'maxContentLength', 'maxBodyLength', 'maxRedirects', 'transport', 'httpAgent', + 'httpsAgent', 'cancelToken', 'socketPath', 'responseEncoding' + ]; + var directMergeKeys = ['validateStatus']; + + function getMergedValue(target, source) { + if (utils.isPlainObject(target) && utils.isPlainObject(source)) { + return utils.merge(target, source); + } else if (utils.isPlainObject(source)) { + return utils.merge({}, source); + } else if (utils.isArray(source)) { + return source.slice(); + } + return source; + } + + function mergeDeepProperties(prop) { + if (!utils.isUndefined(config2[prop])) { + config[prop] = getMergedValue(config1[prop], config2[prop]); + } else if (!utils.isUndefined(config1[prop])) { + config[prop] = getMergedValue(undefined, config1[prop]); + } + } + + utils.forEach(valueFromConfig2Keys, function valueFromConfig2(prop) { + if (!utils.isUndefined(config2[prop])) { + config[prop] = getMergedValue(undefined, config2[prop]); + } + }); + + utils.forEach(mergeDeepPropertiesKeys, mergeDeepProperties); + + utils.forEach(defaultToConfig2Keys, function defaultToConfig2(prop) { + if (!utils.isUndefined(config2[prop])) { + config[prop] = getMergedValue(undefined, config2[prop]); + } else if (!utils.isUndefined(config1[prop])) { + config[prop] = getMergedValue(undefined, config1[prop]); + } + }); + + utils.forEach(directMergeKeys, function merge(prop) { + if (prop in config2) { + config[prop] = getMergedValue(config1[prop], config2[prop]); + } else if (prop in config1) { + config[prop] = getMergedValue(undefined, config1[prop]); + } + }); + + var axiosKeys = valueFromConfig2Keys + .concat(mergeDeepPropertiesKeys) + .concat(defaultToConfig2Keys) + .concat(directMergeKeys); + + var otherKeys = Object + .keys(config1) + .concat(Object.keys(config2)) + .filter(function filterAxiosKeys(key) { + return axiosKeys.indexOf(key) === -1; + }); + + utils.forEach(otherKeys, mergeDeepProperties); + + return config; +}; + + +/***/ }), + +/***/ 822: +/***/ (function(module, __unusedexports, __webpack_require__) { + +"use strict"; + + +var fs = __webpack_require__(747), + join = __webpack_require__(277).join, + resolve = __webpack_require__(277).resolve, + dirname = __webpack_require__(277).dirname, + defaultOptions = { + extensions: ['js', 'json', 'coffee'], + recurse: true, + rename: function (name) { + return name; + }, + visit: function (obj) { + return obj; + } + }; + +function checkFileInclusion(path, filename, options) { + return ( + // verify file has valid extension + (new RegExp('\\.(' + options.extensions.join('|') + ')$', 'i').test(filename)) && + + // if options.include is a RegExp, evaluate it and make sure the path passes + !(options.include && options.include instanceof RegExp && !options.include.test(path)) && + + // if options.include is a function, evaluate it and make sure the path passes + !(options.include && typeof options.include === 'function' && !options.include(path, filename)) && + + // if options.exclude is a RegExp, evaluate it and make sure the path doesn't pass + !(options.exclude && options.exclude instanceof RegExp && options.exclude.test(path)) && + + // if options.exclude is a function, evaluate it and make sure the path doesn't pass + !(options.exclude && typeof options.exclude === 'function' && options.exclude(path, filename)) + ); +} + +function requireDirectory(m, path, options) { + var retval = {}; + + // path is optional + if (path && !options && typeof path !== 'string') { + options = path; + path = null; + } + + // default options + options = options || {}; + for (var prop in defaultOptions) { + if (typeof options[prop] === 'undefined') { + options[prop] = defaultOptions[prop]; + } + } + + // if no path was passed in, assume the equivelant of __dirname from caller + // otherwise, resolve path relative to the equivalent of __dirname + path = !path ? dirname(m.filename) : resolve(dirname(m.filename), path); + + // get the path of each file in specified directory, append to current tree node, recurse + fs.readdirSync(path).forEach(function (filename) { + var joined = join(path, filename), + files, + key, + obj; + + if (fs.statSync(joined).isDirectory() && options.recurse) { + // this node is a directory; recurse + files = requireDirectory(m, joined, options); + // exclude empty directories + if (Object.keys(files).length) { + retval[options.rename(filename, joined, filename)] = files; + } + } else { + if (joined !== m.filename && checkFileInclusion(joined, filename, options)) { + // hash node key shouldn't include file extension + key = filename.substring(0, filename.lastIndexOf('.')); + obj = m.require(joined); + retval[options.rename(key, joined, filename)] = options.visit(obj, joined, filename) || obj; + } + } + }); + + return retval; +} + +module.exports = requireDirectory; +module.exports.defaults = defaultOptions; + + +/***/ }), + +/***/ 825: +/***/ (function(module) { + +"use strict"; + + +module.exports = function bind(fn, thisArg) { + return function wrap() { + var args = new Array(arguments.length); + for (var i = 0; i < args.length; i++) { + args[i] = arguments[i]; + } + return fn.apply(thisArg, args); + }; +}; + + +/***/ }), + +/***/ 835: +/***/ (function(module) { + +module.exports = require("url"); + +/***/ }), + +/***/ 847: +/***/ (function(module, __unusedexports, __webpack_require__) { + +"use strict"; + + +var utils = __webpack_require__(318); +var bind = __webpack_require__(825); +var Axios = __webpack_require__(536); +var mergeConfig = __webpack_require__(781); +var defaults = __webpack_require__(82); + +/** + * Create an instance of Axios + * + * @param {Object} defaultConfig The default config for the instance + * @return {Axios} A new instance of Axios + */ +function createInstance(defaultConfig) { + var context = new Axios(defaultConfig); + var instance = bind(Axios.prototype.request, context); + + // Copy axios.prototype to instance + utils.extend(instance, Axios.prototype, context); + + // Copy context to instance + utils.extend(instance, context); + + return instance; +} + +// Create the default instance to be exported +var axios = createInstance(defaults); + +// Expose Axios class to allow class inheritance +axios.Axios = Axios; + +// Factory for creating new instances +axios.create = function create(instanceConfig) { + return createInstance(mergeConfig(axios.defaults, instanceConfig)); +}; + +// Expose Cancel & CancelToken +axios.Cancel = __webpack_require__(201); +axios.CancelToken = __webpack_require__(464); +axios.isCancel = __webpack_require__(752); + +// Expose all/spread +axios.all = function all(promises) { + return Promise.all(promises); +}; +axios.spread = __webpack_require__(708); + +// Expose isAxiosError +axios.isAxiosError = __webpack_require__(246); + +module.exports = axios; + +// Allow use of default import syntax in TypeScript +module.exports.default = axios; + + +/***/ }), + +/***/ 849: +/***/ (function(module, __unusedexports, __webpack_require__) { + +"use strict"; + + +var utils = __webpack_require__(318); + +/** + * Transform the data for a request or a response + * + * @param {Object|String} data The data to be transformed + * @param {Array} headers The headers for the request or response + * @param {Array|Function} fns A single function or Array of functions + * @returns {*} The resulting transformed data + */ +module.exports = function transformData(data, headers, fns) { + /*eslint no-param-reassign:0*/ + utils.forEach(fns, function transform(fn) { + data = fn(data, headers); + }); + + return data; +}; + + +/***/ }), + +/***/ 895: +/***/ (function(module, __unusedexports, __webpack_require__) { + +"use strict"; + + +var utils = __webpack_require__(318); + +// Headers whose duplicates are ignored by node +// c.f. https://nodejs.org/api/http.html#http_message_headers +var ignoreDuplicateOf = [ + 'age', 'authorization', 'content-length', 'content-type', 'etag', + 'expires', 'from', 'host', 'if-modified-since', 'if-unmodified-since', + 'last-modified', 'location', 'max-forwards', 'proxy-authorization', + 'referer', 'retry-after', 'user-agent' +]; + +/** + * Parse headers into an object + * + * ``` + * Date: Wed, 27 Aug 2014 08:58:49 GMT + * Content-Type: application/json + * Connection: keep-alive + * Transfer-Encoding: chunked + * ``` + * + * @param {String} headers Headers needing to be parsed + * @returns {Object} Headers parsed into an object + */ +module.exports = function parseHeaders(headers) { + var parsed = {}; + var key; + var val; + var i; + + if (!headers) { return parsed; } + + utils.forEach(headers.split('\n'), function parser(line) { + i = line.indexOf(':'); + key = utils.trim(line.substr(0, i)).toLowerCase(); + val = utils.trim(line.substr(i + 1)); + + if (key) { + if (parsed[key] && ignoreDuplicateOf.indexOf(key) >= 0) { + return; + } + if (key === 'set-cookie') { + parsed[key] = (parsed[key] ? parsed[key] : []).concat([val]); + } else { + parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val; + } + } + }); + + return parsed; +}; + + +/***/ }), + +/***/ 907: +/***/ (function(module) { + +function webpackEmptyContext(req) { + if (typeof req === 'number' && __webpack_require__.m[req]) + return __webpack_require__(req); +try { return require(req) } +catch (e) { if (e.code !== 'MODULE_NOT_FOUND') throw e } +var e = new Error("Cannot find module '" + req + "'"); + e.code = 'MODULE_NOT_FOUND'; + throw e; +} +webpackEmptyContext.keys = function() { return []; }; +webpackEmptyContext.resolve = webpackEmptyContext; +module.exports = webpackEmptyContext; +webpackEmptyContext.id = 907; + +/***/ }), + +/***/ 943: +/***/ (function(module, __unusedexports, __webpack_require__) { + +"use strict"; + + +var utils = __webpack_require__(318); +var settle = __webpack_require__(75); +var cookies = __webpack_require__(600); +var buildURL = __webpack_require__(87); +var buildFullPath = __webpack_require__(79); +var parseHeaders = __webpack_require__(895); +var isURLSameOrigin = __webpack_require__(244); +var createError = __webpack_require__(566); + +module.exports = function xhrAdapter(config) { + return new Promise(function dispatchXhrRequest(resolve, reject) { + var requestData = config.data; + var requestHeaders = config.headers; + + if (utils.isFormData(requestData)) { + delete requestHeaders['Content-Type']; // Let the browser set it + } + + var request = new XMLHttpRequest(); + + // HTTP basic authentication + if (config.auth) { + var username = config.auth.username || ''; + var password = config.auth.password ? unescape(encodeURIComponent(config.auth.password)) : ''; + requestHeaders.Authorization = 'Basic ' + btoa(username + ':' + password); + } + + var fullPath = buildFullPath(config.baseURL, config.url); + request.open(config.method.toUpperCase(), buildURL(fullPath, config.params, config.paramsSerializer), true); + + // Set the request timeout in MS + request.timeout = config.timeout; + + // Listen for ready state + request.onreadystatechange = function handleLoad() { + if (!request || request.readyState !== 4) { + return; + } + + // The request errored out and we didn't get a response, this will be + // handled by onerror instead + // With one exception: request that using file: protocol, most browsers + // will return status as 0 even though it's a successful request + if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) { + return; + } + + // Prepare the response + var responseHeaders = 'getAllResponseHeaders' in request ? parseHeaders(request.getAllResponseHeaders()) : null; + var responseData = !config.responseType || config.responseType === 'text' ? request.responseText : request.response; + var response = { + data: responseData, + status: request.status, + statusText: request.statusText, + headers: responseHeaders, + config: config, + request: request + }; + + settle(resolve, reject, response); + + // Clean up request + request = null; + }; + + // Handle browser request cancellation (as opposed to a manual cancellation) + request.onabort = function handleAbort() { + if (!request) { + return; + } + + reject(createError('Request aborted', config, 'ECONNABORTED', request)); + + // Clean up request + request = null; + }; + + // Handle low level network errors + request.onerror = function handleError() { + // Real errors are hidden from us by the browser + // onerror should only fire if it's a network error + reject(createError('Network Error', config, null, request)); + + // Clean up request + request = null; + }; + + // Handle timeout + request.ontimeout = function handleTimeout() { + var timeoutErrorMessage = 'timeout of ' + config.timeout + 'ms exceeded'; + if (config.timeoutErrorMessage) { + timeoutErrorMessage = config.timeoutErrorMessage; + } + reject(createError(timeoutErrorMessage, config, 'ECONNABORTED', + request)); + + // Clean up request + request = null; + }; + + // Add xsrf header + // This is only done if running in a standard browser environment. + // Specifically not if we're in a web worker, or react-native. + if (utils.isStandardBrowserEnv()) { + // Add xsrf header + var xsrfValue = (config.withCredentials || isURLSameOrigin(fullPath)) && config.xsrfCookieName ? + cookies.read(config.xsrfCookieName) : + undefined; + + if (xsrfValue) { + requestHeaders[config.xsrfHeaderName] = xsrfValue; + } + } + + // Add headers to the request + if ('setRequestHeader' in request) { + utils.forEach(requestHeaders, function setRequestHeader(val, key) { + if (typeof requestData === 'undefined' && key.toLowerCase() === 'content-type') { + // Remove Content-Type if data is undefined + delete requestHeaders[key]; + } else { + // Otherwise add header to the request + request.setRequestHeader(key, val); + } + }); + } + + // Add withCredentials to request if needed + if (!utils.isUndefined(config.withCredentials)) { + request.withCredentials = !!config.withCredentials; + } + + // Add responseType to request if needed + if (config.responseType) { + try { + request.responseType = config.responseType; + } catch (e) { + // Expected DOMException thrown by browsers not compatible XMLHttpRequest Level 2. + // But, this can be suppressed for 'json' type as it can be parsed by default 'transformResponse' function. + if (config.responseType !== 'json') { + throw e; + } + } + } + + // Handle progress if needed + if (typeof config.onDownloadProgress === 'function') { + request.addEventListener('progress', config.onDownloadProgress); + } + + // Not all browsers support upload events + if (typeof config.onUploadProgress === 'function' && request.upload) { + request.upload.addEventListener('progress', config.onUploadProgress); + } + + if (config.cancelToken) { + // Handle cancellation + config.cancelToken.promise.then(function onCanceled(cancel) { + if (!request) { + return; + } + + request.abort(); + reject(cancel); + // Clean up request + request = null; + }); + } + + if (!requestData) { + requestData = null; + } + + // Send the request + request.send(requestData); + }); +}; + + +/***/ }), + +/***/ 948: +/***/ (function(module) { + +"use strict"; + + +/** + * Update an Error with the specified config, error code, and response. + * + * @param {Error} error The error to update. + * @param {Object} config The config. + * @param {string} [code] The error code (for example, 'ECONNABORTED'). + * @param {Object} [request] The request. + * @param {Object} [response] The response. + * @returns {Error} The error. + */ +module.exports = function enhanceError(error, config, code, request, response) { + error.config = config; + if (code) { + error.code = code; + } + + error.request = request; + error.response = response; + error.isAxiosError = true; + + error.toJSON = function toJSON() { + return { + // Standard + message: this.message, + name: this.name, + // Microsoft + description: this.description, + number: this.number, + // Mozilla + fileName: this.fileName, + lineNumber: this.lineNumber, + columnNumber: this.columnNumber, + stack: this.stack, + // Axios + config: this.config, + code: this.code + }; + }; + return error; +}; + + +/***/ }), + +/***/ 957: +/***/ (function(module, __unusedexports, __webpack_require__) { + +"use strict"; + +const stringWidth = __webpack_require__(987); +const stripAnsi = __webpack_require__(236); +const ansiStyles = __webpack_require__(970); + +const ESCAPES = new Set([ + '\u001B', + '\u009B' +]); + +const END_CODE = 39; + +const ANSI_ESCAPE_BELL = '\u0007'; +const ANSI_CSI = '['; +const ANSI_OSC = ']'; +const ANSI_SGR_TERMINATOR = 'm'; +const ANSI_ESCAPE_LINK = `${ANSI_OSC}8;;`; + +const wrapAnsi = code => `${ESCAPES.values().next().value}${ANSI_CSI}${code}${ANSI_SGR_TERMINATOR}`; +const wrapAnsiHyperlink = uri => `${ESCAPES.values().next().value}${ANSI_ESCAPE_LINK}${uri}${ANSI_ESCAPE_BELL}`; + +// Calculate the length of words split on ' ', ignoring +// the extra characters added by ansi escape codes +const wordLengths = string => string.split(' ').map(character => stringWidth(character)); + +// Wrap a long word across multiple rows +// Ansi escape codes do not count towards length +const wrapWord = (rows, word, columns) => { + const characters = [...word]; + + let isInsideEscape = false; + let isInsideLinkEscape = false; + let visible = stringWidth(stripAnsi(rows[rows.length - 1])); + + for (const [index, character] of characters.entries()) { + const characterLength = stringWidth(character); + + if (visible + characterLength <= columns) { + rows[rows.length - 1] += character; + } else { + rows.push(character); + visible = 0; + } + + if (ESCAPES.has(character)) { + isInsideEscape = true; + isInsideLinkEscape = characters.slice(index + 1).join('').startsWith(ANSI_ESCAPE_LINK); + } + + if (isInsideEscape) { + if (isInsideLinkEscape) { + if (character === ANSI_ESCAPE_BELL) { + isInsideEscape = false; + isInsideLinkEscape = false; + } + } else if (character === ANSI_SGR_TERMINATOR) { + isInsideEscape = false; + } + + continue; + } + + visible += characterLength; + + if (visible === columns && index < characters.length - 1) { + rows.push(''); + visible = 0; + } + } + + // It's possible that the last row we copy over is only + // ansi escape characters, handle this edge-case + if (!visible && rows[rows.length - 1].length > 0 && rows.length > 1) { + rows[rows.length - 2] += rows.pop(); + } +}; + +// Trims spaces from a string ignoring invisible sequences +const stringVisibleTrimSpacesRight = string => { + const words = string.split(' '); + let last = words.length; + + while (last > 0) { + if (stringWidth(words[last - 1]) > 0) { + break; + } + + last--; + } + + if (last === words.length) { + return string; + } + + return words.slice(0, last).join(' ') + words.slice(last).join(''); +}; + +// The wrap-ansi module can be invoked in either 'hard' or 'soft' wrap mode +// +// 'hard' will never allow a string to take up more than columns characters +// +// 'soft' allows long words to expand past the column length +const exec = (string, columns, options = {}) => { + if (options.trim !== false && string.trim() === '') { + return ''; + } + + let returnValue = ''; + let escapeCode; + let escapeUrl; + + const lengths = wordLengths(string); + let rows = ['']; + + for (const [index, word] of string.split(' ').entries()) { + if (options.trim !== false) { + rows[rows.length - 1] = rows[rows.length - 1].trimStart(); + } + + let rowLength = stringWidth(rows[rows.length - 1]); + + if (index !== 0) { + if (rowLength >= columns && (options.wordWrap === false || options.trim === false)) { + // If we start with a new word but the current row length equals the length of the columns, add a new row + rows.push(''); + rowLength = 0; + } + + if (rowLength > 0 || options.trim === false) { + rows[rows.length - 1] += ' '; + rowLength++; + } + } + + // In 'hard' wrap mode, the length of a line is never allowed to extend past 'columns' + if (options.hard && lengths[index] > columns) { + const remainingColumns = (columns - rowLength); + const breaksStartingThisLine = 1 + Math.floor((lengths[index] - remainingColumns - 1) / columns); + const breaksStartingNextLine = Math.floor((lengths[index] - 1) / columns); + if (breaksStartingNextLine < breaksStartingThisLine) { + rows.push(''); + } + + wrapWord(rows, word, columns); + continue; + } + + if (rowLength + lengths[index] > columns && rowLength > 0 && lengths[index] > 0) { + if (options.wordWrap === false && rowLength < columns) { + wrapWord(rows, word, columns); + continue; + } + + rows.push(''); + } + + if (rowLength + lengths[index] > columns && options.wordWrap === false) { + wrapWord(rows, word, columns); + continue; + } + + rows[rows.length - 1] += word; + } + + if (options.trim !== false) { + rows = rows.map(stringVisibleTrimSpacesRight); + } + + const pre = [...rows.join('\n')]; + + for (const [index, character] of pre.entries()) { + returnValue += character; + + if (ESCAPES.has(character)) { + const {groups} = new RegExp(`(?:\\${ANSI_CSI}(?\\d+)m|\\${ANSI_ESCAPE_LINK}(?.*)${ANSI_ESCAPE_BELL})`).exec(pre.slice(index).join('')) || {groups: {}}; + if (groups.code !== undefined) { + const code = Number.parseFloat(groups.code); + escapeCode = code === END_CODE ? undefined : code; + } else if (groups.uri !== undefined) { + escapeUrl = groups.uri.length === 0 ? undefined : groups.uri; + } + } + + const code = ansiStyles.codes.get(Number(escapeCode)); + + if (pre[index + 1] === '\n') { + if (escapeUrl) { + returnValue += wrapAnsiHyperlink(''); + } + + if (escapeCode && code) { + returnValue += wrapAnsi(code); + } + } else if (character === '\n') { + if (escapeCode && code) { + returnValue += wrapAnsi(escapeCode); + } + + if (escapeUrl) { + returnValue += wrapAnsiHyperlink(escapeUrl); + } + } + } + + return returnValue; +}; + +// For each newline, invoke the method separately +module.exports = (string, columns, options) => { + return String(string) + .normalize() + .replace(/\r\n/g, '\n') + .split('\n') + .map(line => exec(line, columns, options)) + .join('\n'); +}; + + +/***/ }), + +/***/ 970: +/***/ (function(module, __unusedexports, __webpack_require__) { + +"use strict"; +/* module decorator */ module = __webpack_require__.nmd(module); + + +const wrapAnsi16 = (fn, offset) => (...args) => { + const code = fn(...args); + return `\u001B[${code + offset}m`; +}; + +const wrapAnsi256 = (fn, offset) => (...args) => { + const code = fn(...args); + return `\u001B[${38 + offset};5;${code}m`; +}; + +const wrapAnsi16m = (fn, offset) => (...args) => { + const rgb = fn(...args); + return `\u001B[${38 + offset};2;${rgb[0]};${rgb[1]};${rgb[2]}m`; +}; + +const ansi2ansi = n => n; +const rgb2rgb = (r, g, b) => [r, g, b]; + +const setLazyProperty = (object, property, get) => { + Object.defineProperty(object, property, { + get: () => { + const value = get(); + + Object.defineProperty(object, property, { + value, + enumerable: true, + configurable: true + }); + + return value; + }, + enumerable: true, + configurable: true + }); +}; + +/** @type {typeof import('color-convert')} */ +let colorConvert; +const makeDynamicStyles = (wrap, targetSpace, identity, isBackground) => { + if (colorConvert === undefined) { + colorConvert = __webpack_require__(535); + } + + const offset = isBackground ? 10 : 0; + const styles = {}; + + for (const [sourceSpace, suite] of Object.entries(colorConvert)) { + const name = sourceSpace === 'ansi16' ? 'ansi' : sourceSpace; + if (sourceSpace === targetSpace) { + styles[name] = wrap(identity, offset); + } else if (typeof suite === 'object') { + styles[name] = wrap(suite[targetSpace], offset); + } + } + + return styles; +}; + +function assembleStyles() { + const codes = new Map(); + const styles = { + modifier: { + reset: [0, 0], + // 21 isn't widely supported and 22 does the same thing + bold: [1, 22], + dim: [2, 22], + italic: [3, 23], + underline: [4, 24], + inverse: [7, 27], + hidden: [8, 28], + strikethrough: [9, 29] + }, + color: { + black: [30, 39], + red: [31, 39], + green: [32, 39], + yellow: [33, 39], + blue: [34, 39], + magenta: [35, 39], + cyan: [36, 39], + white: [37, 39], + + // Bright color + blackBright: [90, 39], + redBright: [91, 39], + greenBright: [92, 39], + yellowBright: [93, 39], + blueBright: [94, 39], + magentaBright: [95, 39], + cyanBright: [96, 39], + whiteBright: [97, 39] + }, + bgColor: { + bgBlack: [40, 49], + bgRed: [41, 49], + bgGreen: [42, 49], + bgYellow: [43, 49], + bgBlue: [44, 49], + bgMagenta: [45, 49], + bgCyan: [46, 49], + bgWhite: [47, 49], + + // Bright color + bgBlackBright: [100, 49], + bgRedBright: [101, 49], + bgGreenBright: [102, 49], + bgYellowBright: [103, 49], + bgBlueBright: [104, 49], + bgMagentaBright: [105, 49], + bgCyanBright: [106, 49], + bgWhiteBright: [107, 49] + } + }; + + // Alias bright black as gray (and grey) + styles.color.gray = styles.color.blackBright; + styles.bgColor.bgGray = styles.bgColor.bgBlackBright; + styles.color.grey = styles.color.blackBright; + styles.bgColor.bgGrey = styles.bgColor.bgBlackBright; + + for (const [groupName, group] of Object.entries(styles)) { + for (const [styleName, style] of Object.entries(group)) { + styles[styleName] = { + open: `\u001B[${style[0]}m`, + close: `\u001B[${style[1]}m` + }; + + group[styleName] = styles[styleName]; + + codes.set(style[0], style[1]); + } + + Object.defineProperty(styles, groupName, { + value: group, + enumerable: false + }); + } + + Object.defineProperty(styles, 'codes', { + value: codes, + enumerable: false + }); + + styles.color.close = '\u001B[39m'; + styles.bgColor.close = '\u001B[49m'; + + setLazyProperty(styles.color, 'ansi', () => makeDynamicStyles(wrapAnsi16, 'ansi16', ansi2ansi, false)); + setLazyProperty(styles.color, 'ansi256', () => makeDynamicStyles(wrapAnsi256, 'ansi256', ansi2ansi, false)); + setLazyProperty(styles.color, 'ansi16m', () => makeDynamicStyles(wrapAnsi16m, 'rgb', rgb2rgb, false)); + setLazyProperty(styles.bgColor, 'ansi', () => makeDynamicStyles(wrapAnsi16, 'ansi16', ansi2ansi, true)); + setLazyProperty(styles.bgColor, 'ansi256', () => makeDynamicStyles(wrapAnsi256, 'ansi256', ansi2ansi, true)); + setLazyProperty(styles.bgColor, 'ansi16m', () => makeDynamicStyles(wrapAnsi16m, 'rgb', rgb2rgb, true)); + + return styles; +} + +// Make the export immutable +Object.defineProperty(module, 'exports', { + enumerable: true, + get: assembleStyles +}); + + +/***/ }), + +/***/ 975: +/***/ (function(module, exports, __webpack_require__) { + +/* module decorator */ module = __webpack_require__.nmd(module); +/** + * @license + * Lodash + * Copyright OpenJS Foundation and other contributors + * Released under MIT license + * Based on Underscore.js 1.8.3 + * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors + */ +;(function() { + + /** Used as a safe reference for `undefined` in pre-ES5 environments. */ + var undefined; + + /** Used as the semantic version number. */ + var VERSION = '4.17.21'; + + /** Used as the size to enable large array optimizations. */ + var LARGE_ARRAY_SIZE = 200; + + /** Error message constants. */ + var CORE_ERROR_TEXT = 'Unsupported core-js use. Try https://npms.io/search?q=ponyfill.', + FUNC_ERROR_TEXT = 'Expected a function', + INVALID_TEMPL_VAR_ERROR_TEXT = 'Invalid `variable` option passed into `_.template`'; + + /** Used to stand-in for `undefined` hash values. */ + var HASH_UNDEFINED = '__lodash_hash_undefined__'; + + /** Used as the maximum memoize cache size. */ + var MAX_MEMOIZE_SIZE = 500; + + /** Used as the internal argument placeholder. */ + var PLACEHOLDER = '__lodash_placeholder__'; + + /** Used to compose bitmasks for cloning. */ + var CLONE_DEEP_FLAG = 1, + CLONE_FLAT_FLAG = 2, + CLONE_SYMBOLS_FLAG = 4; + + /** Used to compose bitmasks for value comparisons. */ + var COMPARE_PARTIAL_FLAG = 1, + COMPARE_UNORDERED_FLAG = 2; + + /** Used to compose bitmasks for function metadata. */ + var WRAP_BIND_FLAG = 1, + WRAP_BIND_KEY_FLAG = 2, + WRAP_CURRY_BOUND_FLAG = 4, + WRAP_CURRY_FLAG = 8, + WRAP_CURRY_RIGHT_FLAG = 16, + WRAP_PARTIAL_FLAG = 32, + WRAP_PARTIAL_RIGHT_FLAG = 64, + WRAP_ARY_FLAG = 128, + WRAP_REARG_FLAG = 256, + WRAP_FLIP_FLAG = 512; + + /** Used as default options for `_.truncate`. */ + var DEFAULT_TRUNC_LENGTH = 30, + DEFAULT_TRUNC_OMISSION = '...'; + + /** Used to detect hot functions by number of calls within a span of milliseconds. */ + var HOT_COUNT = 800, + HOT_SPAN = 16; + + /** Used to indicate the type of lazy iteratees. */ + var LAZY_FILTER_FLAG = 1, + LAZY_MAP_FLAG = 2, + LAZY_WHILE_FLAG = 3; + + /** Used as references for various `Number` constants. */ + var INFINITY = 1 / 0, + MAX_SAFE_INTEGER = 9007199254740991, + MAX_INTEGER = 1.7976931348623157e+308, + NAN = 0 / 0; + + /** Used as references for the maximum length and index of an array. */ + var MAX_ARRAY_LENGTH = 4294967295, + MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1, + HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1; + + /** Used to associate wrap methods with their bit flags. */ + var wrapFlags = [ + ['ary', WRAP_ARY_FLAG], + ['bind', WRAP_BIND_FLAG], + ['bindKey', WRAP_BIND_KEY_FLAG], + ['curry', WRAP_CURRY_FLAG], + ['curryRight', WRAP_CURRY_RIGHT_FLAG], + ['flip', WRAP_FLIP_FLAG], + ['partial', WRAP_PARTIAL_FLAG], + ['partialRight', WRAP_PARTIAL_RIGHT_FLAG], + ['rearg', WRAP_REARG_FLAG] + ]; + + /** `Object#toString` result references. */ + var argsTag = '[object Arguments]', + arrayTag = '[object Array]', + asyncTag = '[object AsyncFunction]', + boolTag = '[object Boolean]', + dateTag = '[object Date]', + domExcTag = '[object DOMException]', + errorTag = '[object Error]', + funcTag = '[object Function]', + genTag = '[object GeneratorFunction]', + mapTag = '[object Map]', + numberTag = '[object Number]', + nullTag = '[object Null]', + objectTag = '[object Object]', + promiseTag = '[object Promise]', + proxyTag = '[object Proxy]', + regexpTag = '[object RegExp]', + setTag = '[object Set]', + stringTag = '[object String]', + symbolTag = '[object Symbol]', + undefinedTag = '[object Undefined]', + weakMapTag = '[object WeakMap]', + weakSetTag = '[object WeakSet]'; + + var arrayBufferTag = '[object ArrayBuffer]', + dataViewTag = '[object DataView]', + float32Tag = '[object Float32Array]', + float64Tag = '[object Float64Array]', + int8Tag = '[object Int8Array]', + int16Tag = '[object Int16Array]', + int32Tag = '[object Int32Array]', + uint8Tag = '[object Uint8Array]', + uint8ClampedTag = '[object Uint8ClampedArray]', + uint16Tag = '[object Uint16Array]', + uint32Tag = '[object Uint32Array]'; + + /** Used to match empty string literals in compiled template source. */ + var reEmptyStringLeading = /\b__p \+= '';/g, + reEmptyStringMiddle = /\b(__p \+=) '' \+/g, + reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g; + + /** Used to match HTML entities and HTML characters. */ + var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g, + reUnescapedHtml = /[&<>"']/g, + reHasEscapedHtml = RegExp(reEscapedHtml.source), + reHasUnescapedHtml = RegExp(reUnescapedHtml.source); + + /** Used to match template delimiters. */ + var reEscape = /<%-([\s\S]+?)%>/g, + reEvaluate = /<%([\s\S]+?)%>/g, + reInterpolate = /<%=([\s\S]+?)%>/g; + + /** Used to match property names within property paths. */ + var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/, + reIsPlainProp = /^\w*$/, + rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g; + + /** + * Used to match `RegExp` + * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns). + */ + var reRegExpChar = /[\\^$.*+?()[\]{}|]/g, + reHasRegExpChar = RegExp(reRegExpChar.source); + + /** Used to match leading whitespace. */ + var reTrimStart = /^\s+/; + + /** Used to match a single whitespace character. */ + var reWhitespace = /\s/; + + /** Used to match wrap detail comments. */ + var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/, + reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/, + reSplitDetails = /,? & /; + + /** Used to match words composed of alphanumeric characters. */ + var reAsciiWord = /[^\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f]+/g; + + /** + * Used to validate the `validate` option in `_.template` variable. + * + * Forbids characters which could potentially change the meaning of the function argument definition: + * - "()," (modification of function parameters) + * - "=" (default value) + * - "[]{}" (destructuring of function parameters) + * - "/" (beginning of a comment) + * - whitespace + */ + var reForbiddenIdentifierChars = /[()=,{}\[\]\/\s]/; + + /** Used to match backslashes in property paths. */ + var reEscapeChar = /\\(\\)?/g; + + /** + * Used to match + * [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components). + */ + var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g; + + /** Used to match `RegExp` flags from their coerced string values. */ + var reFlags = /\w*$/; + + /** Used to detect bad signed hexadecimal string values. */ + var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; + + /** Used to detect binary string values. */ + var reIsBinary = /^0b[01]+$/i; + + /** Used to detect host constructors (Safari). */ + var reIsHostCtor = /^\[object .+?Constructor\]$/; + + /** Used to detect octal string values. */ + var reIsOctal = /^0o[0-7]+$/i; + + /** Used to detect unsigned integer values. */ + var reIsUint = /^(?:0|[1-9]\d*)$/; + + /** Used to match Latin Unicode letters (excluding mathematical operators). */ + var reLatin = /[\xc0-\xd6\xd8-\xf6\xf8-\xff\u0100-\u017f]/g; + + /** Used to ensure capturing order of template delimiters. */ + var reNoMatch = /($^)/; + + /** Used to match unescaped characters in compiled string literals. */ + var reUnescapedString = /['\n\r\u2028\u2029\\]/g; + + /** Used to compose unicode character classes. */ + var rsAstralRange = '\\ud800-\\udfff', + rsComboMarksRange = '\\u0300-\\u036f', + reComboHalfMarksRange = '\\ufe20-\\ufe2f', + rsComboSymbolsRange = '\\u20d0-\\u20ff', + rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange, + rsDingbatRange = '\\u2700-\\u27bf', + rsLowerRange = 'a-z\\xdf-\\xf6\\xf8-\\xff', + rsMathOpRange = '\\xac\\xb1\\xd7\\xf7', + rsNonCharRange = '\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\xbf', + rsPunctuationRange = '\\u2000-\\u206f', + rsSpaceRange = ' \\t\\x0b\\f\\xa0\\ufeff\\n\\r\\u2028\\u2029\\u1680\\u180e\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200a\\u202f\\u205f\\u3000', + rsUpperRange = 'A-Z\\xc0-\\xd6\\xd8-\\xde', + rsVarRange = '\\ufe0e\\ufe0f', + rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange; + + /** Used to compose unicode capture groups. */ + var rsApos = "['\u2019]", + rsAstral = '[' + rsAstralRange + ']', + rsBreak = '[' + rsBreakRange + ']', + rsCombo = '[' + rsComboRange + ']', + rsDigits = '\\d+', + rsDingbat = '[' + rsDingbatRange + ']', + rsLower = '[' + rsLowerRange + ']', + rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']', + rsFitz = '\\ud83c[\\udffb-\\udfff]', + rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')', + rsNonAstral = '[^' + rsAstralRange + ']', + rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}', + rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]', + rsUpper = '[' + rsUpperRange + ']', + rsZWJ = '\\u200d'; + + /** Used to compose unicode regexes. */ + var rsMiscLower = '(?:' + rsLower + '|' + rsMisc + ')', + rsMiscUpper = '(?:' + rsUpper + '|' + rsMisc + ')', + rsOptContrLower = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?', + rsOptContrUpper = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?', + reOptMod = rsModifier + '?', + rsOptVar = '[' + rsVarRange + ']?', + rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*', + rsOrdLower = '\\d*(?:1st|2nd|3rd|(?![123])\\dth)(?=\\b|[A-Z_])', + rsOrdUpper = '\\d*(?:1ST|2ND|3RD|(?![123])\\dTH)(?=\\b|[a-z_])', + rsSeq = rsOptVar + reOptMod + rsOptJoin, + rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq, + rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')'; + + /** Used to match apostrophes. */ + var reApos = RegExp(rsApos, 'g'); + + /** + * Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and + * [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols). + */ + var reComboMark = RegExp(rsCombo, 'g'); + + /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */ + var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g'); + + /** Used to match complex or compound words. */ + var reUnicodeWord = RegExp([ + rsUpper + '?' + rsLower + '+' + rsOptContrLower + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')', + rsMiscUpper + '+' + rsOptContrUpper + '(?=' + [rsBreak, rsUpper + rsMiscLower, '$'].join('|') + ')', + rsUpper + '?' + rsMiscLower + '+' + rsOptContrLower, + rsUpper + '+' + rsOptContrUpper, + rsOrdUpper, + rsOrdLower, + rsDigits, + rsEmoji + ].join('|'), 'g'); + + /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */ + var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']'); + + /** Used to detect strings that need a more robust regexp to match words. */ + var reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/; + + /** Used to assign default `context` object properties. */ + var contextProps = [ + 'Array', 'Buffer', 'DataView', 'Date', 'Error', 'Float32Array', 'Float64Array', + 'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Map', 'Math', 'Object', + 'Promise', 'RegExp', 'Set', 'String', 'Symbol', 'TypeError', 'Uint8Array', + 'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap', + '_', 'clearTimeout', 'isFinite', 'parseInt', 'setTimeout' + ]; + + /** Used to make template sourceURLs easier to identify. */ + var templateCounter = -1; + + /** Used to identify `toStringTag` values of typed arrays. */ + var typedArrayTags = {}; + typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = + typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = + typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = + typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = + typedArrayTags[uint32Tag] = true; + typedArrayTags[argsTag] = typedArrayTags[arrayTag] = + typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = + typedArrayTags[dataViewTag] = typedArrayTags[dateTag] = + typedArrayTags[errorTag] = typedArrayTags[funcTag] = + typedArrayTags[mapTag] = typedArrayTags[numberTag] = + typedArrayTags[objectTag] = typedArrayTags[regexpTag] = + typedArrayTags[setTag] = typedArrayTags[stringTag] = + typedArrayTags[weakMapTag] = false; + + /** Used to identify `toStringTag` values supported by `_.clone`. */ + var cloneableTags = {}; + cloneableTags[argsTag] = cloneableTags[arrayTag] = + cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] = + cloneableTags[boolTag] = cloneableTags[dateTag] = + cloneableTags[float32Tag] = cloneableTags[float64Tag] = + cloneableTags[int8Tag] = cloneableTags[int16Tag] = + cloneableTags[int32Tag] = cloneableTags[mapTag] = + cloneableTags[numberTag] = cloneableTags[objectTag] = + cloneableTags[regexpTag] = cloneableTags[setTag] = + cloneableTags[stringTag] = cloneableTags[symbolTag] = + cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] = + cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true; + cloneableTags[errorTag] = cloneableTags[funcTag] = + cloneableTags[weakMapTag] = false; + + /** Used to map Latin Unicode letters to basic Latin letters. */ + var deburredLetters = { + // Latin-1 Supplement block. + '\xc0': 'A', '\xc1': 'A', '\xc2': 'A', '\xc3': 'A', '\xc4': 'A', '\xc5': 'A', + '\xe0': 'a', '\xe1': 'a', '\xe2': 'a', '\xe3': 'a', '\xe4': 'a', '\xe5': 'a', + '\xc7': 'C', '\xe7': 'c', + '\xd0': 'D', '\xf0': 'd', + '\xc8': 'E', '\xc9': 'E', '\xca': 'E', '\xcb': 'E', + '\xe8': 'e', '\xe9': 'e', '\xea': 'e', '\xeb': 'e', + '\xcc': 'I', '\xcd': 'I', '\xce': 'I', '\xcf': 'I', + '\xec': 'i', '\xed': 'i', '\xee': 'i', '\xef': 'i', + '\xd1': 'N', '\xf1': 'n', + '\xd2': 'O', '\xd3': 'O', '\xd4': 'O', '\xd5': 'O', '\xd6': 'O', '\xd8': 'O', + '\xf2': 'o', '\xf3': 'o', '\xf4': 'o', '\xf5': 'o', '\xf6': 'o', '\xf8': 'o', + '\xd9': 'U', '\xda': 'U', '\xdb': 'U', '\xdc': 'U', + '\xf9': 'u', '\xfa': 'u', '\xfb': 'u', '\xfc': 'u', + '\xdd': 'Y', '\xfd': 'y', '\xff': 'y', + '\xc6': 'Ae', '\xe6': 'ae', + '\xde': 'Th', '\xfe': 'th', + '\xdf': 'ss', + // Latin Extended-A block. + '\u0100': 'A', '\u0102': 'A', '\u0104': 'A', + '\u0101': 'a', '\u0103': 'a', '\u0105': 'a', + '\u0106': 'C', '\u0108': 'C', '\u010a': 'C', '\u010c': 'C', + '\u0107': 'c', '\u0109': 'c', '\u010b': 'c', '\u010d': 'c', + '\u010e': 'D', '\u0110': 'D', '\u010f': 'd', '\u0111': 'd', + '\u0112': 'E', '\u0114': 'E', '\u0116': 'E', '\u0118': 'E', '\u011a': 'E', + '\u0113': 'e', '\u0115': 'e', '\u0117': 'e', '\u0119': 'e', '\u011b': 'e', + '\u011c': 'G', '\u011e': 'G', '\u0120': 'G', '\u0122': 'G', + '\u011d': 'g', '\u011f': 'g', '\u0121': 'g', '\u0123': 'g', + '\u0124': 'H', '\u0126': 'H', '\u0125': 'h', '\u0127': 'h', + '\u0128': 'I', '\u012a': 'I', '\u012c': 'I', '\u012e': 'I', '\u0130': 'I', + '\u0129': 'i', '\u012b': 'i', '\u012d': 'i', '\u012f': 'i', '\u0131': 'i', + '\u0134': 'J', '\u0135': 'j', + '\u0136': 'K', '\u0137': 'k', '\u0138': 'k', + '\u0139': 'L', '\u013b': 'L', '\u013d': 'L', '\u013f': 'L', '\u0141': 'L', + '\u013a': 'l', '\u013c': 'l', '\u013e': 'l', '\u0140': 'l', '\u0142': 'l', + '\u0143': 'N', '\u0145': 'N', '\u0147': 'N', '\u014a': 'N', + '\u0144': 'n', '\u0146': 'n', '\u0148': 'n', '\u014b': 'n', + '\u014c': 'O', '\u014e': 'O', '\u0150': 'O', + '\u014d': 'o', '\u014f': 'o', '\u0151': 'o', + '\u0154': 'R', '\u0156': 'R', '\u0158': 'R', + '\u0155': 'r', '\u0157': 'r', '\u0159': 'r', + '\u015a': 'S', '\u015c': 'S', '\u015e': 'S', '\u0160': 'S', + '\u015b': 's', '\u015d': 's', '\u015f': 's', '\u0161': 's', + '\u0162': 'T', '\u0164': 'T', '\u0166': 'T', + '\u0163': 't', '\u0165': 't', '\u0167': 't', + '\u0168': 'U', '\u016a': 'U', '\u016c': 'U', '\u016e': 'U', '\u0170': 'U', '\u0172': 'U', + '\u0169': 'u', '\u016b': 'u', '\u016d': 'u', '\u016f': 'u', '\u0171': 'u', '\u0173': 'u', + '\u0174': 'W', '\u0175': 'w', + '\u0176': 'Y', '\u0177': 'y', '\u0178': 'Y', + '\u0179': 'Z', '\u017b': 'Z', '\u017d': 'Z', + '\u017a': 'z', '\u017c': 'z', '\u017e': 'z', + '\u0132': 'IJ', '\u0133': 'ij', + '\u0152': 'Oe', '\u0153': 'oe', + '\u0149': "'n", '\u017f': 's' + }; + + /** Used to map characters to HTML entities. */ + var htmlEscapes = { + '&': '&', + '<': '<', + '>': '>', + '"': '"', + "'": ''' + }; + + /** Used to map HTML entities to characters. */ + var htmlUnescapes = { + '&': '&', + '<': '<', + '>': '>', + '"': '"', + ''': "'" + }; + + /** Used to escape characters for inclusion in compiled string literals. */ + var stringEscapes = { + '\\': '\\', + "'": "'", + '\n': 'n', + '\r': 'r', + '\u2028': 'u2028', + '\u2029': 'u2029' + }; + + /** Built-in method references without a dependency on `root`. */ + var freeParseFloat = parseFloat, + freeParseInt = parseInt; + + /** Detect free variable `global` from Node.js. */ + var freeGlobal = typeof global == 'object' && global && global.Object === Object && global; + + /** Detect free variable `self`. */ + var freeSelf = typeof self == 'object' && self && self.Object === Object && self; + + /** Used as a reference to the global object. */ + var root = freeGlobal || freeSelf || Function('return this')(); + + /** Detect free variable `exports`. */ + var freeExports = true && exports && !exports.nodeType && exports; + + /** Detect free variable `module`. */ + var freeModule = freeExports && "object" == 'object' && module && !module.nodeType && module; + + /** Detect the popular CommonJS extension `module.exports`. */ + var moduleExports = freeModule && freeModule.exports === freeExports; + + /** Detect free variable `process` from Node.js. */ + var freeProcess = moduleExports && freeGlobal.process; + + /** Used to access faster Node.js helpers. */ + var nodeUtil = (function() { + try { + // Use `util.types` for Node.js 10+. + var types = freeModule && freeModule.require && freeModule.require('util').types; + + if (types) { + return types; + } + + // Legacy `process.binding('util')` for Node.js < 10. + return freeProcess && freeProcess.binding && freeProcess.binding('util'); + } catch (e) {} + }()); + + /* Node.js helper references. */ + var nodeIsArrayBuffer = nodeUtil && nodeUtil.isArrayBuffer, + nodeIsDate = nodeUtil && nodeUtil.isDate, + nodeIsMap = nodeUtil && nodeUtil.isMap, + nodeIsRegExp = nodeUtil && nodeUtil.isRegExp, + nodeIsSet = nodeUtil && nodeUtil.isSet, + nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray; + + /*--------------------------------------------------------------------------*/ + + /** + * A faster alternative to `Function#apply`, this function invokes `func` + * with the `this` binding of `thisArg` and the arguments of `args`. + * + * @private + * @param {Function} func The function to invoke. + * @param {*} thisArg The `this` binding of `func`. + * @param {Array} args The arguments to invoke `func` with. + * @returns {*} Returns the result of `func`. + */ + function apply(func, thisArg, args) { + switch (args.length) { + case 0: return func.call(thisArg); + case 1: return func.call(thisArg, args[0]); + case 2: return func.call(thisArg, args[0], args[1]); + case 3: return func.call(thisArg, args[0], args[1], args[2]); + } + return func.apply(thisArg, args); + } + + /** + * A specialized version of `baseAggregator` for arrays. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform keys. + * @param {Object} accumulator The initial aggregated object. + * @returns {Function} Returns `accumulator`. + */ + function arrayAggregator(array, setter, iteratee, accumulator) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + var value = array[index]; + setter(accumulator, value, iteratee(value), array); + } + return accumulator; + } + + /** + * A specialized version of `_.forEach` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns `array`. + */ + function arrayEach(array, iteratee) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (iteratee(array[index], index, array) === false) { + break; + } + } + return array; + } + + /** + * A specialized version of `_.forEachRight` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns `array`. + */ + function arrayEachRight(array, iteratee) { + var length = array == null ? 0 : array.length; + + while (length--) { + if (iteratee(array[length], length, array) === false) { + break; + } + } + return array; + } + + /** + * A specialized version of `_.every` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false`. + */ + function arrayEvery(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (!predicate(array[index], index, array)) { + return false; + } + } + return true; + } + + /** + * A specialized version of `_.filter` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + */ + function arrayFilter(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (predicate(value, index, array)) { + result[resIndex++] = value; + } + } + return result; + } + + /** + * A specialized version of `_.includes` for arrays without support for + * specifying an index to search from. + * + * @private + * @param {Array} [array] The array to inspect. + * @param {*} target The value to search for. + * @returns {boolean} Returns `true` if `target` is found, else `false`. + */ + function arrayIncludes(array, value) { + var length = array == null ? 0 : array.length; + return !!length && baseIndexOf(array, value, 0) > -1; + } + + /** + * This function is like `arrayIncludes` except that it accepts a comparator. + * + * @private + * @param {Array} [array] The array to inspect. + * @param {*} target The value to search for. + * @param {Function} comparator The comparator invoked per element. + * @returns {boolean} Returns `true` if `target` is found, else `false`. + */ + function arrayIncludesWith(array, value, comparator) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (comparator(value, array[index])) { + return true; + } + } + return false; + } + + /** + * A specialized version of `_.map` for arrays without support for iteratee + * shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + */ + function arrayMap(array, iteratee) { + var index = -1, + length = array == null ? 0 : array.length, + result = Array(length); + + while (++index < length) { + result[index] = iteratee(array[index], index, array); + } + return result; + } + + /** + * Appends the elements of `values` to `array`. + * + * @private + * @param {Array} array The array to modify. + * @param {Array} values The values to append. + * @returns {Array} Returns `array`. + */ + function arrayPush(array, values) { + var index = -1, + length = values.length, + offset = array.length; + + while (++index < length) { + array[offset + index] = values[index]; + } + return array; + } + + /** + * A specialized version of `_.reduce` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {*} [accumulator] The initial value. + * @param {boolean} [initAccum] Specify using the first element of `array` as + * the initial value. + * @returns {*} Returns the accumulated value. + */ + function arrayReduce(array, iteratee, accumulator, initAccum) { + var index = -1, + length = array == null ? 0 : array.length; + + if (initAccum && length) { + accumulator = array[++index]; + } + while (++index < length) { + accumulator = iteratee(accumulator, array[index], index, array); + } + return accumulator; + } + + /** + * A specialized version of `_.reduceRight` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {*} [accumulator] The initial value. + * @param {boolean} [initAccum] Specify using the last element of `array` as + * the initial value. + * @returns {*} Returns the accumulated value. + */ + function arrayReduceRight(array, iteratee, accumulator, initAccum) { + var length = array == null ? 0 : array.length; + if (initAccum && length) { + accumulator = array[--length]; + } + while (length--) { + accumulator = iteratee(accumulator, array[length], length, array); + } + return accumulator; + } + + /** + * A specialized version of `_.some` for arrays without support for iteratee + * shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + */ + function arraySome(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (predicate(array[index], index, array)) { + return true; + } + } + return false; + } + + /** + * Gets the size of an ASCII `string`. + * + * @private + * @param {string} string The string inspect. + * @returns {number} Returns the string size. + */ + var asciiSize = baseProperty('length'); + + /** + * Converts an ASCII `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function asciiToArray(string) { + return string.split(''); + } + + /** + * Splits an ASCII `string` into an array of its words. + * + * @private + * @param {string} The string to inspect. + * @returns {Array} Returns the words of `string`. + */ + function asciiWords(string) { + return string.match(reAsciiWord) || []; + } + + /** + * The base implementation of methods like `_.findKey` and `_.findLastKey`, + * without support for iteratee shorthands, which iterates over `collection` + * using `eachFunc`. + * + * @private + * @param {Array|Object} collection The collection to inspect. + * @param {Function} predicate The function invoked per iteration. + * @param {Function} eachFunc The function to iterate over `collection`. + * @returns {*} Returns the found element or its key, else `undefined`. + */ + function baseFindKey(collection, predicate, eachFunc) { + var result; + eachFunc(collection, function(value, key, collection) { + if (predicate(value, key, collection)) { + result = key; + return false; + } + }); + return result; + } + + /** + * The base implementation of `_.findIndex` and `_.findLastIndex` without + * support for iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Function} predicate The function invoked per iteration. + * @param {number} fromIndex The index to search from. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function baseFindIndex(array, predicate, fromIndex, fromRight) { + var length = array.length, + index = fromIndex + (fromRight ? 1 : -1); + + while ((fromRight ? index-- : ++index < length)) { + if (predicate(array[index], index, array)) { + return index; + } + } + return -1; + } + + /** + * The base implementation of `_.indexOf` without `fromIndex` bounds checks. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} fromIndex The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function baseIndexOf(array, value, fromIndex) { + return value === value + ? strictIndexOf(array, value, fromIndex) + : baseFindIndex(array, baseIsNaN, fromIndex); + } + + /** + * This function is like `baseIndexOf` except that it accepts a comparator. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} fromIndex The index to search from. + * @param {Function} comparator The comparator invoked per element. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function baseIndexOfWith(array, value, fromIndex, comparator) { + var index = fromIndex - 1, + length = array.length; + + while (++index < length) { + if (comparator(array[index], value)) { + return index; + } + } + return -1; + } + + /** + * The base implementation of `_.isNaN` without support for number objects. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. + */ + function baseIsNaN(value) { + return value !== value; + } + + /** + * The base implementation of `_.mean` and `_.meanBy` without support for + * iteratee shorthands. + * + * @private + * @param {Array} array The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {number} Returns the mean. + */ + function baseMean(array, iteratee) { + var length = array == null ? 0 : array.length; + return length ? (baseSum(array, iteratee) / length) : NAN; + } + + /** + * The base implementation of `_.property` without support for deep paths. + * + * @private + * @param {string} key The key of the property to get. + * @returns {Function} Returns the new accessor function. + */ + function baseProperty(key) { + return function(object) { + return object == null ? undefined : object[key]; + }; + } + + /** + * The base implementation of `_.propertyOf` without support for deep paths. + * + * @private + * @param {Object} object The object to query. + * @returns {Function} Returns the new accessor function. + */ + function basePropertyOf(object) { + return function(key) { + return object == null ? undefined : object[key]; + }; + } + + /** + * The base implementation of `_.reduce` and `_.reduceRight`, without support + * for iteratee shorthands, which iterates over `collection` using `eachFunc`. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {*} accumulator The initial value. + * @param {boolean} initAccum Specify using the first or last element of + * `collection` as the initial value. + * @param {Function} eachFunc The function to iterate over `collection`. + * @returns {*} Returns the accumulated value. + */ + function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) { + eachFunc(collection, function(value, index, collection) { + accumulator = initAccum + ? (initAccum = false, value) + : iteratee(accumulator, value, index, collection); + }); + return accumulator; + } + + /** + * The base implementation of `_.sortBy` which uses `comparer` to define the + * sort order of `array` and replaces criteria objects with their corresponding + * values. + * + * @private + * @param {Array} array The array to sort. + * @param {Function} comparer The function to define sort order. + * @returns {Array} Returns `array`. + */ + function baseSortBy(array, comparer) { + var length = array.length; + + array.sort(comparer); + while (length--) { + array[length] = array[length].value; + } + return array; + } + + /** + * The base implementation of `_.sum` and `_.sumBy` without support for + * iteratee shorthands. + * + * @private + * @param {Array} array The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {number} Returns the sum. + */ + function baseSum(array, iteratee) { + var result, + index = -1, + length = array.length; + + while (++index < length) { + var current = iteratee(array[index]); + if (current !== undefined) { + result = result === undefined ? current : (result + current); + } + } + return result; + } + + /** + * The base implementation of `_.times` without support for iteratee shorthands + * or max array length checks. + * + * @private + * @param {number} n The number of times to invoke `iteratee`. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the array of results. + */ + function baseTimes(n, iteratee) { + var index = -1, + result = Array(n); + + while (++index < n) { + result[index] = iteratee(index); + } + return result; + } + + /** + * The base implementation of `_.toPairs` and `_.toPairsIn` which creates an array + * of key-value pairs for `object` corresponding to the property names of `props`. + * + * @private + * @param {Object} object The object to query. + * @param {Array} props The property names to get values for. + * @returns {Object} Returns the key-value pairs. + */ + function baseToPairs(object, props) { + return arrayMap(props, function(key) { + return [key, object[key]]; + }); + } + + /** + * The base implementation of `_.trim`. + * + * @private + * @param {string} string The string to trim. + * @returns {string} Returns the trimmed string. + */ + function baseTrim(string) { + return string + ? string.slice(0, trimmedEndIndex(string) + 1).replace(reTrimStart, '') + : string; + } + + /** + * The base implementation of `_.unary` without support for storing metadata. + * + * @private + * @param {Function} func The function to cap arguments for. + * @returns {Function} Returns the new capped function. + */ + function baseUnary(func) { + return function(value) { + return func(value); + }; + } + + /** + * The base implementation of `_.values` and `_.valuesIn` which creates an + * array of `object` property values corresponding to the property names + * of `props`. + * + * @private + * @param {Object} object The object to query. + * @param {Array} props The property names to get values for. + * @returns {Object} Returns the array of property values. + */ + function baseValues(object, props) { + return arrayMap(props, function(key) { + return object[key]; + }); + } + + /** + * Checks if a `cache` value for `key` exists. + * + * @private + * @param {Object} cache The cache to query. + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function cacheHas(cache, key) { + return cache.has(key); + } + + /** + * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol + * that is not found in the character symbols. + * + * @private + * @param {Array} strSymbols The string symbols to inspect. + * @param {Array} chrSymbols The character symbols to find. + * @returns {number} Returns the index of the first unmatched string symbol. + */ + function charsStartIndex(strSymbols, chrSymbols) { + var index = -1, + length = strSymbols.length; + + while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} + return index; + } + + /** + * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol + * that is not found in the character symbols. + * + * @private + * @param {Array} strSymbols The string symbols to inspect. + * @param {Array} chrSymbols The character symbols to find. + * @returns {number} Returns the index of the last unmatched string symbol. + */ + function charsEndIndex(strSymbols, chrSymbols) { + var index = strSymbols.length; + + while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} + return index; + } + + /** + * Gets the number of `placeholder` occurrences in `array`. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} placeholder The placeholder to search for. + * @returns {number} Returns the placeholder count. + */ + function countHolders(array, placeholder) { + var length = array.length, + result = 0; + + while (length--) { + if (array[length] === placeholder) { + ++result; + } + } + return result; + } + + /** + * Used by `_.deburr` to convert Latin-1 Supplement and Latin Extended-A + * letters to basic Latin letters. + * + * @private + * @param {string} letter The matched letter to deburr. + * @returns {string} Returns the deburred letter. + */ + var deburrLetter = basePropertyOf(deburredLetters); + + /** + * Used by `_.escape` to convert characters to HTML entities. + * + * @private + * @param {string} chr The matched character to escape. + * @returns {string} Returns the escaped character. + */ + var escapeHtmlChar = basePropertyOf(htmlEscapes); + + /** + * Used by `_.template` to escape characters for inclusion in compiled string literals. + * + * @private + * @param {string} chr The matched character to escape. + * @returns {string} Returns the escaped character. + */ + function escapeStringChar(chr) { + return '\\' + stringEscapes[chr]; + } + + /** + * Gets the value at `key` of `object`. + * + * @private + * @param {Object} [object] The object to query. + * @param {string} key The key of the property to get. + * @returns {*} Returns the property value. + */ + function getValue(object, key) { + return object == null ? undefined : object[key]; + } + + /** + * Checks if `string` contains Unicode symbols. + * + * @private + * @param {string} string The string to inspect. + * @returns {boolean} Returns `true` if a symbol is found, else `false`. + */ + function hasUnicode(string) { + return reHasUnicode.test(string); + } + + /** + * Checks if `string` contains a word composed of Unicode symbols. + * + * @private + * @param {string} string The string to inspect. + * @returns {boolean} Returns `true` if a word is found, else `false`. + */ + function hasUnicodeWord(string) { + return reHasUnicodeWord.test(string); + } + + /** + * Converts `iterator` to an array. + * + * @private + * @param {Object} iterator The iterator to convert. + * @returns {Array} Returns the converted array. + */ + function iteratorToArray(iterator) { + var data, + result = []; + + while (!(data = iterator.next()).done) { + result.push(data.value); + } + return result; + } + + /** + * Converts `map` to its key-value pairs. + * + * @private + * @param {Object} map The map to convert. + * @returns {Array} Returns the key-value pairs. + */ + function mapToArray(map) { + var index = -1, + result = Array(map.size); + + map.forEach(function(value, key) { + result[++index] = [key, value]; + }); + return result; + } + + /** + * Creates a unary function that invokes `func` with its argument transformed. + * + * @private + * @param {Function} func The function to wrap. + * @param {Function} transform The argument transform. + * @returns {Function} Returns the new function. + */ + function overArg(func, transform) { + return function(arg) { + return func(transform(arg)); + }; + } + + /** + * Replaces all `placeholder` elements in `array` with an internal placeholder + * and returns an array of their indexes. + * + * @private + * @param {Array} array The array to modify. + * @param {*} placeholder The placeholder to replace. + * @returns {Array} Returns the new array of placeholder indexes. + */ + function replaceHolders(array, placeholder) { + var index = -1, + length = array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (value === placeholder || value === PLACEHOLDER) { + array[index] = PLACEHOLDER; + result[resIndex++] = index; + } + } + return result; + } + + /** + * Converts `set` to an array of its values. + * + * @private + * @param {Object} set The set to convert. + * @returns {Array} Returns the values. + */ + function setToArray(set) { + var index = -1, + result = Array(set.size); + + set.forEach(function(value) { + result[++index] = value; + }); + return result; + } + + /** + * Converts `set` to its value-value pairs. + * + * @private + * @param {Object} set The set to convert. + * @returns {Array} Returns the value-value pairs. + */ + function setToPairs(set) { + var index = -1, + result = Array(set.size); + + set.forEach(function(value) { + result[++index] = [value, value]; + }); + return result; + } + + /** + * A specialized version of `_.indexOf` which performs strict equality + * comparisons of values, i.e. `===`. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} fromIndex The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function strictIndexOf(array, value, fromIndex) { + var index = fromIndex - 1, + length = array.length; + + while (++index < length) { + if (array[index] === value) { + return index; + } + } + return -1; + } + + /** + * A specialized version of `_.lastIndexOf` which performs strict equality + * comparisons of values, i.e. `===`. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} fromIndex The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function strictLastIndexOf(array, value, fromIndex) { + var index = fromIndex + 1; + while (index--) { + if (array[index] === value) { + return index; + } + } + return index; + } + + /** + * Gets the number of symbols in `string`. + * + * @private + * @param {string} string The string to inspect. + * @returns {number} Returns the string size. + */ + function stringSize(string) { + return hasUnicode(string) + ? unicodeSize(string) + : asciiSize(string); + } + + /** + * Converts `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function stringToArray(string) { + return hasUnicode(string) + ? unicodeToArray(string) + : asciiToArray(string); + } + + /** + * Used by `_.trim` and `_.trimEnd` to get the index of the last non-whitespace + * character of `string`. + * + * @private + * @param {string} string The string to inspect. + * @returns {number} Returns the index of the last non-whitespace character. + */ + function trimmedEndIndex(string) { + var index = string.length; + + while (index-- && reWhitespace.test(string.charAt(index))) {} + return index; + } + + /** + * Used by `_.unescape` to convert HTML entities to characters. + * + * @private + * @param {string} chr The matched character to unescape. + * @returns {string} Returns the unescaped character. + */ + var unescapeHtmlChar = basePropertyOf(htmlUnescapes); + + /** + * Gets the size of a Unicode `string`. + * + * @private + * @param {string} string The string inspect. + * @returns {number} Returns the string size. + */ + function unicodeSize(string) { + var result = reUnicode.lastIndex = 0; + while (reUnicode.test(string)) { + ++result; + } + return result; + } + + /** + * Converts a Unicode `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function unicodeToArray(string) { + return string.match(reUnicode) || []; + } + + /** + * Splits a Unicode `string` into an array of its words. + * + * @private + * @param {string} The string to inspect. + * @returns {Array} Returns the words of `string`. + */ + function unicodeWords(string) { + return string.match(reUnicodeWord) || []; + } + + /*--------------------------------------------------------------------------*/ + + /** + * Create a new pristine `lodash` function using the `context` object. + * + * @static + * @memberOf _ + * @since 1.1.0 + * @category Util + * @param {Object} [context=root] The context object. + * @returns {Function} Returns a new `lodash` function. + * @example + * + * _.mixin({ 'foo': _.constant('foo') }); + * + * var lodash = _.runInContext(); + * lodash.mixin({ 'bar': lodash.constant('bar') }); + * + * _.isFunction(_.foo); + * // => true + * _.isFunction(_.bar); + * // => false + * + * lodash.isFunction(lodash.foo); + * // => false + * lodash.isFunction(lodash.bar); + * // => true + * + * // Create a suped-up `defer` in Node.js. + * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer; + */ + var runInContext = (function runInContext(context) { + context = context == null ? root : _.defaults(root.Object(), context, _.pick(root, contextProps)); + + /** Built-in constructor references. */ + var Array = context.Array, + Date = context.Date, + Error = context.Error, + Function = context.Function, + Math = context.Math, + Object = context.Object, + RegExp = context.RegExp, + String = context.String, + TypeError = context.TypeError; + + /** Used for built-in method references. */ + var arrayProto = Array.prototype, + funcProto = Function.prototype, + objectProto = Object.prototype; + + /** Used to detect overreaching core-js shims. */ + var coreJsData = context['__core-js_shared__']; + + /** Used to resolve the decompiled source of functions. */ + var funcToString = funcProto.toString; + + /** Used to check objects for own properties. */ + var hasOwnProperty = objectProto.hasOwnProperty; + + /** Used to generate unique IDs. */ + var idCounter = 0; + + /** Used to detect methods masquerading as native. */ + var maskSrcKey = (function() { + var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || ''); + return uid ? ('Symbol(src)_1.' + uid) : ''; + }()); + + /** + * Used to resolve the + * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) + * of values. + */ + var nativeObjectToString = objectProto.toString; + + /** Used to infer the `Object` constructor. */ + var objectCtorString = funcToString.call(Object); + + /** Used to restore the original `_` reference in `_.noConflict`. */ + var oldDash = root._; + + /** Used to detect if a method is native. */ + var reIsNative = RegExp('^' + + funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&') + .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' + ); + + /** Built-in value references. */ + var Buffer = moduleExports ? context.Buffer : undefined, + Symbol = context.Symbol, + Uint8Array = context.Uint8Array, + allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined, + getPrototype = overArg(Object.getPrototypeOf, Object), + objectCreate = Object.create, + propertyIsEnumerable = objectProto.propertyIsEnumerable, + splice = arrayProto.splice, + spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined, + symIterator = Symbol ? Symbol.iterator : undefined, + symToStringTag = Symbol ? Symbol.toStringTag : undefined; + + var defineProperty = (function() { + try { + var func = getNative(Object, 'defineProperty'); + func({}, '', {}); + return func; + } catch (e) {} + }()); + + /** Mocked built-ins. */ + var ctxClearTimeout = context.clearTimeout !== root.clearTimeout && context.clearTimeout, + ctxNow = Date && Date.now !== root.Date.now && Date.now, + ctxSetTimeout = context.setTimeout !== root.setTimeout && context.setTimeout; + + /* Built-in method references for those with the same name as other `lodash` methods. */ + var nativeCeil = Math.ceil, + nativeFloor = Math.floor, + nativeGetSymbols = Object.getOwnPropertySymbols, + nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined, + nativeIsFinite = context.isFinite, + nativeJoin = arrayProto.join, + nativeKeys = overArg(Object.keys, Object), + nativeMax = Math.max, + nativeMin = Math.min, + nativeNow = Date.now, + nativeParseInt = context.parseInt, + nativeRandom = Math.random, + nativeReverse = arrayProto.reverse; + + /* Built-in method references that are verified to be native. */ + var DataView = getNative(context, 'DataView'), + Map = getNative(context, 'Map'), + Promise = getNative(context, 'Promise'), + Set = getNative(context, 'Set'), + WeakMap = getNative(context, 'WeakMap'), + nativeCreate = getNative(Object, 'create'); + + /** Used to store function metadata. */ + var metaMap = WeakMap && new WeakMap; + + /** Used to lookup unminified function names. */ + var realNames = {}; + + /** Used to detect maps, sets, and weakmaps. */ + var dataViewCtorString = toSource(DataView), + mapCtorString = toSource(Map), + promiseCtorString = toSource(Promise), + setCtorString = toSource(Set), + weakMapCtorString = toSource(WeakMap); + + /** Used to convert symbols to primitives and strings. */ + var symbolProto = Symbol ? Symbol.prototype : undefined, + symbolValueOf = symbolProto ? symbolProto.valueOf : undefined, + symbolToString = symbolProto ? symbolProto.toString : undefined; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a `lodash` object which wraps `value` to enable implicit method + * chain sequences. Methods that operate on and return arrays, collections, + * and functions can be chained together. Methods that retrieve a single value + * or may return a primitive value will automatically end the chain sequence + * and return the unwrapped value. Otherwise, the value must be unwrapped + * with `_#value`. + * + * Explicit chain sequences, which must be unwrapped with `_#value`, may be + * enabled using `_.chain`. + * + * The execution of chained methods is lazy, that is, it's deferred until + * `_#value` is implicitly or explicitly called. + * + * Lazy evaluation allows several methods to support shortcut fusion. + * Shortcut fusion is an optimization to merge iteratee calls; this avoids + * the creation of intermediate arrays and can greatly reduce the number of + * iteratee executions. Sections of a chain sequence qualify for shortcut + * fusion if the section is applied to an array and iteratees accept only + * one argument. The heuristic for whether a section qualifies for shortcut + * fusion is subject to change. + * + * Chaining is supported in custom builds as long as the `_#value` method is + * directly or indirectly included in the build. + * + * In addition to lodash methods, wrappers have `Array` and `String` methods. + * + * The wrapper `Array` methods are: + * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift` + * + * The wrapper `String` methods are: + * `replace` and `split` + * + * The wrapper methods that support shortcut fusion are: + * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`, + * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`, + * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray` + * + * The chainable wrapper methods are: + * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`, + * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`, + * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`, + * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`, + * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`, + * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`, + * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`, + * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`, + * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`, + * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`, + * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`, + * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`, + * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`, + * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`, + * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`, + * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`, + * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`, + * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`, + * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`, + * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`, + * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`, + * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`, + * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`, + * `zipObject`, `zipObjectDeep`, and `zipWith` + * + * The wrapper methods that are **not** chainable by default are: + * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`, + * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`, + * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`, + * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`, + * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`, + * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`, + * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`, + * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`, + * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`, + * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`, + * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`, + * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`, + * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`, + * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`, + * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`, + * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`, + * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`, + * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`, + * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`, + * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`, + * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`, + * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`, + * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`, + * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`, + * `upperFirst`, `value`, and `words` + * + * @name _ + * @constructor + * @category Seq + * @param {*} value The value to wrap in a `lodash` instance. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * function square(n) { + * return n * n; + * } + * + * var wrapped = _([1, 2, 3]); + * + * // Returns an unwrapped value. + * wrapped.reduce(_.add); + * // => 6 + * + * // Returns a wrapped value. + * var squares = wrapped.map(square); + * + * _.isArray(squares); + * // => false + * + * _.isArray(squares.value()); + * // => true + */ + function lodash(value) { + if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) { + if (value instanceof LodashWrapper) { + return value; + } + if (hasOwnProperty.call(value, '__wrapped__')) { + return wrapperClone(value); + } + } + return new LodashWrapper(value); + } + + /** + * The base implementation of `_.create` without support for assigning + * properties to the created object. + * + * @private + * @param {Object} proto The object to inherit from. + * @returns {Object} Returns the new object. + */ + var baseCreate = (function() { + function object() {} + return function(proto) { + if (!isObject(proto)) { + return {}; + } + if (objectCreate) { + return objectCreate(proto); + } + object.prototype = proto; + var result = new object; + object.prototype = undefined; + return result; + }; + }()); + + /** + * The function whose prototype chain sequence wrappers inherit from. + * + * @private + */ + function baseLodash() { + // No operation performed. + } + + /** + * The base constructor for creating `lodash` wrapper objects. + * + * @private + * @param {*} value The value to wrap. + * @param {boolean} [chainAll] Enable explicit method chain sequences. + */ + function LodashWrapper(value, chainAll) { + this.__wrapped__ = value; + this.__actions__ = []; + this.__chain__ = !!chainAll; + this.__index__ = 0; + this.__values__ = undefined; + } + + /** + * By default, the template delimiters used by lodash are like those in + * embedded Ruby (ERB) as well as ES2015 template strings. Change the + * following template settings to use alternative delimiters. + * + * @static + * @memberOf _ + * @type {Object} + */ + lodash.templateSettings = { + + /** + * Used to detect `data` property values to be HTML-escaped. + * + * @memberOf _.templateSettings + * @type {RegExp} + */ + 'escape': reEscape, + + /** + * Used to detect code to be evaluated. + * + * @memberOf _.templateSettings + * @type {RegExp} + */ + 'evaluate': reEvaluate, + + /** + * Used to detect `data` property values to inject. + * + * @memberOf _.templateSettings + * @type {RegExp} + */ + 'interpolate': reInterpolate, + + /** + * Used to reference the data object in the template text. + * + * @memberOf _.templateSettings + * @type {string} + */ + 'variable': '', + + /** + * Used to import variables into the compiled template. + * + * @memberOf _.templateSettings + * @type {Object} + */ + 'imports': { + + /** + * A reference to the `lodash` function. + * + * @memberOf _.templateSettings.imports + * @type {Function} + */ + '_': lodash + } + }; + + // Ensure wrappers are instances of `baseLodash`. + lodash.prototype = baseLodash.prototype; + lodash.prototype.constructor = lodash; + + LodashWrapper.prototype = baseCreate(baseLodash.prototype); + LodashWrapper.prototype.constructor = LodashWrapper; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation. + * + * @private + * @constructor + * @param {*} value The value to wrap. + */ + function LazyWrapper(value) { + this.__wrapped__ = value; + this.__actions__ = []; + this.__dir__ = 1; + this.__filtered__ = false; + this.__iteratees__ = []; + this.__takeCount__ = MAX_ARRAY_LENGTH; + this.__views__ = []; + } + + /** + * Creates a clone of the lazy wrapper object. + * + * @private + * @name clone + * @memberOf LazyWrapper + * @returns {Object} Returns the cloned `LazyWrapper` object. + */ + function lazyClone() { + var result = new LazyWrapper(this.__wrapped__); + result.__actions__ = copyArray(this.__actions__); + result.__dir__ = this.__dir__; + result.__filtered__ = this.__filtered__; + result.__iteratees__ = copyArray(this.__iteratees__); + result.__takeCount__ = this.__takeCount__; + result.__views__ = copyArray(this.__views__); + return result; + } + + /** + * Reverses the direction of lazy iteration. + * + * @private + * @name reverse + * @memberOf LazyWrapper + * @returns {Object} Returns the new reversed `LazyWrapper` object. + */ + function lazyReverse() { + if (this.__filtered__) { + var result = new LazyWrapper(this); + result.__dir__ = -1; + result.__filtered__ = true; + } else { + result = this.clone(); + result.__dir__ *= -1; + } + return result; + } + + /** + * Extracts the unwrapped value from its lazy wrapper. + * + * @private + * @name value + * @memberOf LazyWrapper + * @returns {*} Returns the unwrapped value. + */ + function lazyValue() { + var array = this.__wrapped__.value(), + dir = this.__dir__, + isArr = isArray(array), + isRight = dir < 0, + arrLength = isArr ? array.length : 0, + view = getView(0, arrLength, this.__views__), + start = view.start, + end = view.end, + length = end - start, + index = isRight ? end : (start - 1), + iteratees = this.__iteratees__, + iterLength = iteratees.length, + resIndex = 0, + takeCount = nativeMin(length, this.__takeCount__); + + if (!isArr || (!isRight && arrLength == length && takeCount == length)) { + return baseWrapperValue(array, this.__actions__); + } + var result = []; + + outer: + while (length-- && resIndex < takeCount) { + index += dir; + + var iterIndex = -1, + value = array[index]; + + while (++iterIndex < iterLength) { + var data = iteratees[iterIndex], + iteratee = data.iteratee, + type = data.type, + computed = iteratee(value); + + if (type == LAZY_MAP_FLAG) { + value = computed; + } else if (!computed) { + if (type == LAZY_FILTER_FLAG) { + continue outer; + } else { + break outer; + } + } + } + result[resIndex++] = value; + } + return result; + } + + // Ensure `LazyWrapper` is an instance of `baseLodash`. + LazyWrapper.prototype = baseCreate(baseLodash.prototype); + LazyWrapper.prototype.constructor = LazyWrapper; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a hash object. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function Hash(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the hash. + * + * @private + * @name clear + * @memberOf Hash + */ + function hashClear() { + this.__data__ = nativeCreate ? nativeCreate(null) : {}; + this.size = 0; + } + + /** + * Removes `key` and its value from the hash. + * + * @private + * @name delete + * @memberOf Hash + * @param {Object} hash The hash to modify. + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function hashDelete(key) { + var result = this.has(key) && delete this.__data__[key]; + this.size -= result ? 1 : 0; + return result; + } + + /** + * Gets the hash value for `key`. + * + * @private + * @name get + * @memberOf Hash + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function hashGet(key) { + var data = this.__data__; + if (nativeCreate) { + var result = data[key]; + return result === HASH_UNDEFINED ? undefined : result; + } + return hasOwnProperty.call(data, key) ? data[key] : undefined; + } + + /** + * Checks if a hash value for `key` exists. + * + * @private + * @name has + * @memberOf Hash + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function hashHas(key) { + var data = this.__data__; + return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key); + } + + /** + * Sets the hash `key` to `value`. + * + * @private + * @name set + * @memberOf Hash + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the hash instance. + */ + function hashSet(key, value) { + var data = this.__data__; + this.size += this.has(key) ? 0 : 1; + data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value; + return this; + } + + // Add methods to `Hash`. + Hash.prototype.clear = hashClear; + Hash.prototype['delete'] = hashDelete; + Hash.prototype.get = hashGet; + Hash.prototype.has = hashHas; + Hash.prototype.set = hashSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates an list cache object. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function ListCache(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the list cache. + * + * @private + * @name clear + * @memberOf ListCache + */ + function listCacheClear() { + this.__data__ = []; + this.size = 0; + } + + /** + * Removes `key` and its value from the list cache. + * + * @private + * @name delete + * @memberOf ListCache + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function listCacheDelete(key) { + var data = this.__data__, + index = assocIndexOf(data, key); + + if (index < 0) { + return false; + } + var lastIndex = data.length - 1; + if (index == lastIndex) { + data.pop(); + } else { + splice.call(data, index, 1); + } + --this.size; + return true; + } + + /** + * Gets the list cache value for `key`. + * + * @private + * @name get + * @memberOf ListCache + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function listCacheGet(key) { + var data = this.__data__, + index = assocIndexOf(data, key); + + return index < 0 ? undefined : data[index][1]; + } + + /** + * Checks if a list cache value for `key` exists. + * + * @private + * @name has + * @memberOf ListCache + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function listCacheHas(key) { + return assocIndexOf(this.__data__, key) > -1; + } + + /** + * Sets the list cache `key` to `value`. + * + * @private + * @name set + * @memberOf ListCache + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the list cache instance. + */ + function listCacheSet(key, value) { + var data = this.__data__, + index = assocIndexOf(data, key); + + if (index < 0) { + ++this.size; + data.push([key, value]); + } else { + data[index][1] = value; + } + return this; + } + + // Add methods to `ListCache`. + ListCache.prototype.clear = listCacheClear; + ListCache.prototype['delete'] = listCacheDelete; + ListCache.prototype.get = listCacheGet; + ListCache.prototype.has = listCacheHas; + ListCache.prototype.set = listCacheSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a map cache object to store key-value pairs. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function MapCache(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the map. + * + * @private + * @name clear + * @memberOf MapCache + */ + function mapCacheClear() { + this.size = 0; + this.__data__ = { + 'hash': new Hash, + 'map': new (Map || ListCache), + 'string': new Hash + }; + } + + /** + * Removes `key` and its value from the map. + * + * @private + * @name delete + * @memberOf MapCache + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function mapCacheDelete(key) { + var result = getMapData(this, key)['delete'](key); + this.size -= result ? 1 : 0; + return result; + } + + /** + * Gets the map value for `key`. + * + * @private + * @name get + * @memberOf MapCache + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function mapCacheGet(key) { + return getMapData(this, key).get(key); + } + + /** + * Checks if a map value for `key` exists. + * + * @private + * @name has + * @memberOf MapCache + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function mapCacheHas(key) { + return getMapData(this, key).has(key); + } + + /** + * Sets the map `key` to `value`. + * + * @private + * @name set + * @memberOf MapCache + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the map cache instance. + */ + function mapCacheSet(key, value) { + var data = getMapData(this, key), + size = data.size; + + data.set(key, value); + this.size += data.size == size ? 0 : 1; + return this; + } + + // Add methods to `MapCache`. + MapCache.prototype.clear = mapCacheClear; + MapCache.prototype['delete'] = mapCacheDelete; + MapCache.prototype.get = mapCacheGet; + MapCache.prototype.has = mapCacheHas; + MapCache.prototype.set = mapCacheSet; + + /*------------------------------------------------------------------------*/ + + /** + * + * Creates an array cache object to store unique values. + * + * @private + * @constructor + * @param {Array} [values] The values to cache. + */ + function SetCache(values) { + var index = -1, + length = values == null ? 0 : values.length; + + this.__data__ = new MapCache; + while (++index < length) { + this.add(values[index]); + } + } + + /** + * Adds `value` to the array cache. + * + * @private + * @name add + * @memberOf SetCache + * @alias push + * @param {*} value The value to cache. + * @returns {Object} Returns the cache instance. + */ + function setCacheAdd(value) { + this.__data__.set(value, HASH_UNDEFINED); + return this; + } + + /** + * Checks if `value` is in the array cache. + * + * @private + * @name has + * @memberOf SetCache + * @param {*} value The value to search for. + * @returns {number} Returns `true` if `value` is found, else `false`. + */ + function setCacheHas(value) { + return this.__data__.has(value); + } + + // Add methods to `SetCache`. + SetCache.prototype.add = SetCache.prototype.push = setCacheAdd; + SetCache.prototype.has = setCacheHas; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a stack cache object to store key-value pairs. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function Stack(entries) { + var data = this.__data__ = new ListCache(entries); + this.size = data.size; + } + + /** + * Removes all key-value entries from the stack. + * + * @private + * @name clear + * @memberOf Stack + */ + function stackClear() { + this.__data__ = new ListCache; + this.size = 0; + } + + /** + * Removes `key` and its value from the stack. + * + * @private + * @name delete + * @memberOf Stack + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function stackDelete(key) { + var data = this.__data__, + result = data['delete'](key); + + this.size = data.size; + return result; + } + + /** + * Gets the stack value for `key`. + * + * @private + * @name get + * @memberOf Stack + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function stackGet(key) { + return this.__data__.get(key); + } + + /** + * Checks if a stack value for `key` exists. + * + * @private + * @name has + * @memberOf Stack + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function stackHas(key) { + return this.__data__.has(key); + } + + /** + * Sets the stack `key` to `value`. + * + * @private + * @name set + * @memberOf Stack + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the stack cache instance. + */ + function stackSet(key, value) { + var data = this.__data__; + if (data instanceof ListCache) { + var pairs = data.__data__; + if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) { + pairs.push([key, value]); + this.size = ++data.size; + return this; + } + data = this.__data__ = new MapCache(pairs); + } + data.set(key, value); + this.size = data.size; + return this; + } + + // Add methods to `Stack`. + Stack.prototype.clear = stackClear; + Stack.prototype['delete'] = stackDelete; + Stack.prototype.get = stackGet; + Stack.prototype.has = stackHas; + Stack.prototype.set = stackSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates an array of the enumerable property names of the array-like `value`. + * + * @private + * @param {*} value The value to query. + * @param {boolean} inherited Specify returning inherited property names. + * @returns {Array} Returns the array of property names. + */ + function arrayLikeKeys(value, inherited) { + var isArr = isArray(value), + isArg = !isArr && isArguments(value), + isBuff = !isArr && !isArg && isBuffer(value), + isType = !isArr && !isArg && !isBuff && isTypedArray(value), + skipIndexes = isArr || isArg || isBuff || isType, + result = skipIndexes ? baseTimes(value.length, String) : [], + length = result.length; + + for (var key in value) { + if ((inherited || hasOwnProperty.call(value, key)) && + !(skipIndexes && ( + // Safari 9 has enumerable `arguments.length` in strict mode. + key == 'length' || + // Node.js 0.10 has enumerable non-index properties on buffers. + (isBuff && (key == 'offset' || key == 'parent')) || + // PhantomJS 2 has enumerable non-index properties on typed arrays. + (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) || + // Skip index properties. + isIndex(key, length) + ))) { + result.push(key); + } + } + return result; + } + + /** + * A specialized version of `_.sample` for arrays. + * + * @private + * @param {Array} array The array to sample. + * @returns {*} Returns the random element. + */ + function arraySample(array) { + var length = array.length; + return length ? array[baseRandom(0, length - 1)] : undefined; + } + + /** + * A specialized version of `_.sampleSize` for arrays. + * + * @private + * @param {Array} array The array to sample. + * @param {number} n The number of elements to sample. + * @returns {Array} Returns the random elements. + */ + function arraySampleSize(array, n) { + return shuffleSelf(copyArray(array), baseClamp(n, 0, array.length)); + } + + /** + * A specialized version of `_.shuffle` for arrays. + * + * @private + * @param {Array} array The array to shuffle. + * @returns {Array} Returns the new shuffled array. + */ + function arrayShuffle(array) { + return shuffleSelf(copyArray(array)); + } + + /** + * This function is like `assignValue` except that it doesn't assign + * `undefined` values. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function assignMergeValue(object, key, value) { + if ((value !== undefined && !eq(object[key], value)) || + (value === undefined && !(key in object))) { + baseAssignValue(object, key, value); + } + } + + /** + * Assigns `value` to `key` of `object` if the existing value is not equivalent + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function assignValue(object, key, value) { + var objValue = object[key]; + if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) || + (value === undefined && !(key in object))) { + baseAssignValue(object, key, value); + } + } + + /** + * Gets the index at which the `key` is found in `array` of key-value pairs. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} key The key to search for. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function assocIndexOf(array, key) { + var length = array.length; + while (length--) { + if (eq(array[length][0], key)) { + return length; + } + } + return -1; + } + + /** + * Aggregates elements of `collection` on `accumulator` with keys transformed + * by `iteratee` and values set by `setter`. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform keys. + * @param {Object} accumulator The initial aggregated object. + * @returns {Function} Returns `accumulator`. + */ + function baseAggregator(collection, setter, iteratee, accumulator) { + baseEach(collection, function(value, key, collection) { + setter(accumulator, value, iteratee(value), collection); + }); + return accumulator; + } + + /** + * The base implementation of `_.assign` without support for multiple sources + * or `customizer` functions. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @returns {Object} Returns `object`. + */ + function baseAssign(object, source) { + return object && copyObject(source, keys(source), object); + } + + /** + * The base implementation of `_.assignIn` without support for multiple sources + * or `customizer` functions. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @returns {Object} Returns `object`. + */ + function baseAssignIn(object, source) { + return object && copyObject(source, keysIn(source), object); + } + + /** + * The base implementation of `assignValue` and `assignMergeValue` without + * value checks. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function baseAssignValue(object, key, value) { + if (key == '__proto__' && defineProperty) { + defineProperty(object, key, { + 'configurable': true, + 'enumerable': true, + 'value': value, + 'writable': true + }); + } else { + object[key] = value; + } + } + + /** + * The base implementation of `_.at` without support for individual paths. + * + * @private + * @param {Object} object The object to iterate over. + * @param {string[]} paths The property paths to pick. + * @returns {Array} Returns the picked elements. + */ + function baseAt(object, paths) { + var index = -1, + length = paths.length, + result = Array(length), + skip = object == null; + + while (++index < length) { + result[index] = skip ? undefined : get(object, paths[index]); + } + return result; + } + + /** + * The base implementation of `_.clamp` which doesn't coerce arguments. + * + * @private + * @param {number} number The number to clamp. + * @param {number} [lower] The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the clamped number. + */ + function baseClamp(number, lower, upper) { + if (number === number) { + if (upper !== undefined) { + number = number <= upper ? number : upper; + } + if (lower !== undefined) { + number = number >= lower ? number : lower; + } + } + return number; + } + + /** + * The base implementation of `_.clone` and `_.cloneDeep` which tracks + * traversed objects. + * + * @private + * @param {*} value The value to clone. + * @param {boolean} bitmask The bitmask flags. + * 1 - Deep clone + * 2 - Flatten inherited properties + * 4 - Clone symbols + * @param {Function} [customizer] The function to customize cloning. + * @param {string} [key] The key of `value`. + * @param {Object} [object] The parent object of `value`. + * @param {Object} [stack] Tracks traversed objects and their clone counterparts. + * @returns {*} Returns the cloned value. + */ + function baseClone(value, bitmask, customizer, key, object, stack) { + var result, + isDeep = bitmask & CLONE_DEEP_FLAG, + isFlat = bitmask & CLONE_FLAT_FLAG, + isFull = bitmask & CLONE_SYMBOLS_FLAG; + + if (customizer) { + result = object ? customizer(value, key, object, stack) : customizer(value); + } + if (result !== undefined) { + return result; + } + if (!isObject(value)) { + return value; + } + var isArr = isArray(value); + if (isArr) { + result = initCloneArray(value); + if (!isDeep) { + return copyArray(value, result); + } + } else { + var tag = getTag(value), + isFunc = tag == funcTag || tag == genTag; + + if (isBuffer(value)) { + return cloneBuffer(value, isDeep); + } + if (tag == objectTag || tag == argsTag || (isFunc && !object)) { + result = (isFlat || isFunc) ? {} : initCloneObject(value); + if (!isDeep) { + return isFlat + ? copySymbolsIn(value, baseAssignIn(result, value)) + : copySymbols(value, baseAssign(result, value)); + } + } else { + if (!cloneableTags[tag]) { + return object ? value : {}; + } + result = initCloneByTag(value, tag, isDeep); + } + } + // Check for circular references and return its corresponding clone. + stack || (stack = new Stack); + var stacked = stack.get(value); + if (stacked) { + return stacked; + } + stack.set(value, result); + + if (isSet(value)) { + value.forEach(function(subValue) { + result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack)); + }); + } else if (isMap(value)) { + value.forEach(function(subValue, key) { + result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack)); + }); + } + + var keysFunc = isFull + ? (isFlat ? getAllKeysIn : getAllKeys) + : (isFlat ? keysIn : keys); + + var props = isArr ? undefined : keysFunc(value); + arrayEach(props || value, function(subValue, key) { + if (props) { + key = subValue; + subValue = value[key]; + } + // Recursively populate clone (susceptible to call stack limits). + assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack)); + }); + return result; + } + + /** + * The base implementation of `_.conforms` which doesn't clone `source`. + * + * @private + * @param {Object} source The object of property predicates to conform to. + * @returns {Function} Returns the new spec function. + */ + function baseConforms(source) { + var props = keys(source); + return function(object) { + return baseConformsTo(object, source, props); + }; + } + + /** + * The base implementation of `_.conformsTo` which accepts `props` to check. + * + * @private + * @param {Object} object The object to inspect. + * @param {Object} source The object of property predicates to conform to. + * @returns {boolean} Returns `true` if `object` conforms, else `false`. + */ + function baseConformsTo(object, source, props) { + var length = props.length; + if (object == null) { + return !length; + } + object = Object(object); + while (length--) { + var key = props[length], + predicate = source[key], + value = object[key]; + + if ((value === undefined && !(key in object)) || !predicate(value)) { + return false; + } + } + return true; + } + + /** + * The base implementation of `_.delay` and `_.defer` which accepts `args` + * to provide to `func`. + * + * @private + * @param {Function} func The function to delay. + * @param {number} wait The number of milliseconds to delay invocation. + * @param {Array} args The arguments to provide to `func`. + * @returns {number|Object} Returns the timer id or timeout object. + */ + function baseDelay(func, wait, args) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + return setTimeout(function() { func.apply(undefined, args); }, wait); + } + + /** + * The base implementation of methods like `_.difference` without support + * for excluding multiple arrays or iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Array} values The values to exclude. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of filtered values. + */ + function baseDifference(array, values, iteratee, comparator) { + var index = -1, + includes = arrayIncludes, + isCommon = true, + length = array.length, + result = [], + valuesLength = values.length; + + if (!length) { + return result; + } + if (iteratee) { + values = arrayMap(values, baseUnary(iteratee)); + } + if (comparator) { + includes = arrayIncludesWith; + isCommon = false; + } + else if (values.length >= LARGE_ARRAY_SIZE) { + includes = cacheHas; + isCommon = false; + values = new SetCache(values); + } + outer: + while (++index < length) { + var value = array[index], + computed = iteratee == null ? value : iteratee(value); + + value = (comparator || value !== 0) ? value : 0; + if (isCommon && computed === computed) { + var valuesIndex = valuesLength; + while (valuesIndex--) { + if (values[valuesIndex] === computed) { + continue outer; + } + } + result.push(value); + } + else if (!includes(values, computed, comparator)) { + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.forEach` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array|Object} Returns `collection`. + */ + var baseEach = createBaseEach(baseForOwn); + + /** + * The base implementation of `_.forEachRight` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array|Object} Returns `collection`. + */ + var baseEachRight = createBaseEach(baseForOwnRight, true); + + /** + * The base implementation of `_.every` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false` + */ + function baseEvery(collection, predicate) { + var result = true; + baseEach(collection, function(value, index, collection) { + result = !!predicate(value, index, collection); + return result; + }); + return result; + } + + /** + * The base implementation of methods like `_.max` and `_.min` which accepts a + * `comparator` to determine the extremum value. + * + * @private + * @param {Array} array The array to iterate over. + * @param {Function} iteratee The iteratee invoked per iteration. + * @param {Function} comparator The comparator used to compare values. + * @returns {*} Returns the extremum value. + */ + function baseExtremum(array, iteratee, comparator) { + var index = -1, + length = array.length; + + while (++index < length) { + var value = array[index], + current = iteratee(value); + + if (current != null && (computed === undefined + ? (current === current && !isSymbol(current)) + : comparator(current, computed) + )) { + var computed = current, + result = value; + } + } + return result; + } + + /** + * The base implementation of `_.fill` without an iteratee call guard. + * + * @private + * @param {Array} array The array to fill. + * @param {*} value The value to fill `array` with. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns `array`. + */ + function baseFill(array, value, start, end) { + var length = array.length; + + start = toInteger(start); + if (start < 0) { + start = -start > length ? 0 : (length + start); + } + end = (end === undefined || end > length) ? length : toInteger(end); + if (end < 0) { + end += length; + } + end = start > end ? 0 : toLength(end); + while (start < end) { + array[start++] = value; + } + return array; + } + + /** + * The base implementation of `_.filter` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + */ + function baseFilter(collection, predicate) { + var result = []; + baseEach(collection, function(value, index, collection) { + if (predicate(value, index, collection)) { + result.push(value); + } + }); + return result; + } + + /** + * The base implementation of `_.flatten` with support for restricting flattening. + * + * @private + * @param {Array} array The array to flatten. + * @param {number} depth The maximum recursion depth. + * @param {boolean} [predicate=isFlattenable] The function invoked per iteration. + * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks. + * @param {Array} [result=[]] The initial result value. + * @returns {Array} Returns the new flattened array. + */ + function baseFlatten(array, depth, predicate, isStrict, result) { + var index = -1, + length = array.length; + + predicate || (predicate = isFlattenable); + result || (result = []); + + while (++index < length) { + var value = array[index]; + if (depth > 0 && predicate(value)) { + if (depth > 1) { + // Recursively flatten arrays (susceptible to call stack limits). + baseFlatten(value, depth - 1, predicate, isStrict, result); + } else { + arrayPush(result, value); + } + } else if (!isStrict) { + result[result.length] = value; + } + } + return result; + } + + /** + * The base implementation of `baseForOwn` which iterates over `object` + * properties returned by `keysFunc` and invokes `iteratee` for each property. + * Iteratee functions may exit iteration early by explicitly returning `false`. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {Function} keysFunc The function to get the keys of `object`. + * @returns {Object} Returns `object`. + */ + var baseFor = createBaseFor(); + + /** + * This function is like `baseFor` except that it iterates over properties + * in the opposite order. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {Function} keysFunc The function to get the keys of `object`. + * @returns {Object} Returns `object`. + */ + var baseForRight = createBaseFor(true); + + /** + * The base implementation of `_.forOwn` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Object} Returns `object`. + */ + function baseForOwn(object, iteratee) { + return object && baseFor(object, iteratee, keys); + } + + /** + * The base implementation of `_.forOwnRight` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Object} Returns `object`. + */ + function baseForOwnRight(object, iteratee) { + return object && baseForRight(object, iteratee, keys); + } + + /** + * The base implementation of `_.functions` which creates an array of + * `object` function property names filtered from `props`. + * + * @private + * @param {Object} object The object to inspect. + * @param {Array} props The property names to filter. + * @returns {Array} Returns the function names. + */ + function baseFunctions(object, props) { + return arrayFilter(props, function(key) { + return isFunction(object[key]); + }); + } + + /** + * The base implementation of `_.get` without support for default values. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to get. + * @returns {*} Returns the resolved value. + */ + function baseGet(object, path) { + path = castPath(path, object); + + var index = 0, + length = path.length; + + while (object != null && index < length) { + object = object[toKey(path[index++])]; + } + return (index && index == length) ? object : undefined; + } + + /** + * The base implementation of `getAllKeys` and `getAllKeysIn` which uses + * `keysFunc` and `symbolsFunc` to get the enumerable property names and + * symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Function} keysFunc The function to get the keys of `object`. + * @param {Function} symbolsFunc The function to get the symbols of `object`. + * @returns {Array} Returns the array of property names and symbols. + */ + function baseGetAllKeys(object, keysFunc, symbolsFunc) { + var result = keysFunc(object); + return isArray(object) ? result : arrayPush(result, symbolsFunc(object)); + } + + /** + * The base implementation of `getTag` without fallbacks for buggy environments. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the `toStringTag`. + */ + function baseGetTag(value) { + if (value == null) { + return value === undefined ? undefinedTag : nullTag; + } + return (symToStringTag && symToStringTag in Object(value)) + ? getRawTag(value) + : objectToString(value); + } + + /** + * The base implementation of `_.gt` which doesn't coerce arguments. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is greater than `other`, + * else `false`. + */ + function baseGt(value, other) { + return value > other; + } + + /** + * The base implementation of `_.has` without support for deep paths. + * + * @private + * @param {Object} [object] The object to query. + * @param {Array|string} key The key to check. + * @returns {boolean} Returns `true` if `key` exists, else `false`. + */ + function baseHas(object, key) { + return object != null && hasOwnProperty.call(object, key); + } + + /** + * The base implementation of `_.hasIn` without support for deep paths. + * + * @private + * @param {Object} [object] The object to query. + * @param {Array|string} key The key to check. + * @returns {boolean} Returns `true` if `key` exists, else `false`. + */ + function baseHasIn(object, key) { + return object != null && key in Object(object); + } + + /** + * The base implementation of `_.inRange` which doesn't coerce arguments. + * + * @private + * @param {number} number The number to check. + * @param {number} start The start of the range. + * @param {number} end The end of the range. + * @returns {boolean} Returns `true` if `number` is in the range, else `false`. + */ + function baseInRange(number, start, end) { + return number >= nativeMin(start, end) && number < nativeMax(start, end); + } + + /** + * The base implementation of methods like `_.intersection`, without support + * for iteratee shorthands, that accepts an array of arrays to inspect. + * + * @private + * @param {Array} arrays The arrays to inspect. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of shared values. + */ + function baseIntersection(arrays, iteratee, comparator) { + var includes = comparator ? arrayIncludesWith : arrayIncludes, + length = arrays[0].length, + othLength = arrays.length, + othIndex = othLength, + caches = Array(othLength), + maxLength = Infinity, + result = []; + + while (othIndex--) { + var array = arrays[othIndex]; + if (othIndex && iteratee) { + array = arrayMap(array, baseUnary(iteratee)); + } + maxLength = nativeMin(array.length, maxLength); + caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120)) + ? new SetCache(othIndex && array) + : undefined; + } + array = arrays[0]; + + var index = -1, + seen = caches[0]; + + outer: + while (++index < length && result.length < maxLength) { + var value = array[index], + computed = iteratee ? iteratee(value) : value; + + value = (comparator || value !== 0) ? value : 0; + if (!(seen + ? cacheHas(seen, computed) + : includes(result, computed, comparator) + )) { + othIndex = othLength; + while (--othIndex) { + var cache = caches[othIndex]; + if (!(cache + ? cacheHas(cache, computed) + : includes(arrays[othIndex], computed, comparator)) + ) { + continue outer; + } + } + if (seen) { + seen.push(computed); + } + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.invert` and `_.invertBy` which inverts + * `object` with values transformed by `iteratee` and set by `setter`. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform values. + * @param {Object} accumulator The initial inverted object. + * @returns {Function} Returns `accumulator`. + */ + function baseInverter(object, setter, iteratee, accumulator) { + baseForOwn(object, function(value, key, object) { + setter(accumulator, iteratee(value), key, object); + }); + return accumulator; + } + + /** + * The base implementation of `_.invoke` without support for individual + * method arguments. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path of the method to invoke. + * @param {Array} args The arguments to invoke the method with. + * @returns {*} Returns the result of the invoked method. + */ + function baseInvoke(object, path, args) { + path = castPath(path, object); + object = parent(object, path); + var func = object == null ? object : object[toKey(last(path))]; + return func == null ? undefined : apply(func, object, args); + } + + /** + * The base implementation of `_.isArguments`. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an `arguments` object, + */ + function baseIsArguments(value) { + return isObjectLike(value) && baseGetTag(value) == argsTag; + } + + /** + * The base implementation of `_.isArrayBuffer` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`. + */ + function baseIsArrayBuffer(value) { + return isObjectLike(value) && baseGetTag(value) == arrayBufferTag; + } + + /** + * The base implementation of `_.isDate` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a date object, else `false`. + */ + function baseIsDate(value) { + return isObjectLike(value) && baseGetTag(value) == dateTag; + } + + /** + * The base implementation of `_.isEqual` which supports partial comparisons + * and tracks traversed objects. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @param {boolean} bitmask The bitmask flags. + * 1 - Unordered comparison + * 2 - Partial comparison + * @param {Function} [customizer] The function to customize comparisons. + * @param {Object} [stack] Tracks traversed `value` and `other` objects. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + */ + function baseIsEqual(value, other, bitmask, customizer, stack) { + if (value === other) { + return true; + } + if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) { + return value !== value && other !== other; + } + return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack); + } + + /** + * A specialized version of `baseIsEqual` for arrays and objects which performs + * deep comparisons and tracks traversed objects enabling objects with circular + * references to be compared. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} [stack] Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) { + var objIsArr = isArray(object), + othIsArr = isArray(other), + objTag = objIsArr ? arrayTag : getTag(object), + othTag = othIsArr ? arrayTag : getTag(other); + + objTag = objTag == argsTag ? objectTag : objTag; + othTag = othTag == argsTag ? objectTag : othTag; + + var objIsObj = objTag == objectTag, + othIsObj = othTag == objectTag, + isSameTag = objTag == othTag; + + if (isSameTag && isBuffer(object)) { + if (!isBuffer(other)) { + return false; + } + objIsArr = true; + objIsObj = false; + } + if (isSameTag && !objIsObj) { + stack || (stack = new Stack); + return (objIsArr || isTypedArray(object)) + ? equalArrays(object, other, bitmask, customizer, equalFunc, stack) + : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack); + } + if (!(bitmask & COMPARE_PARTIAL_FLAG)) { + var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'), + othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__'); + + if (objIsWrapped || othIsWrapped) { + var objUnwrapped = objIsWrapped ? object.value() : object, + othUnwrapped = othIsWrapped ? other.value() : other; + + stack || (stack = new Stack); + return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack); + } + } + if (!isSameTag) { + return false; + } + stack || (stack = new Stack); + return equalObjects(object, other, bitmask, customizer, equalFunc, stack); + } + + /** + * The base implementation of `_.isMap` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a map, else `false`. + */ + function baseIsMap(value) { + return isObjectLike(value) && getTag(value) == mapTag; + } + + /** + * The base implementation of `_.isMatch` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to inspect. + * @param {Object} source The object of property values to match. + * @param {Array} matchData The property names, values, and compare flags to match. + * @param {Function} [customizer] The function to customize comparisons. + * @returns {boolean} Returns `true` if `object` is a match, else `false`. + */ + function baseIsMatch(object, source, matchData, customizer) { + var index = matchData.length, + length = index, + noCustomizer = !customizer; + + if (object == null) { + return !length; + } + object = Object(object); + while (index--) { + var data = matchData[index]; + if ((noCustomizer && data[2]) + ? data[1] !== object[data[0]] + : !(data[0] in object) + ) { + return false; + } + } + while (++index < length) { + data = matchData[index]; + var key = data[0], + objValue = object[key], + srcValue = data[1]; + + if (noCustomizer && data[2]) { + if (objValue === undefined && !(key in object)) { + return false; + } + } else { + var stack = new Stack; + if (customizer) { + var result = customizer(objValue, srcValue, key, object, source, stack); + } + if (!(result === undefined + ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack) + : result + )) { + return false; + } + } + } + return true; + } + + /** + * The base implementation of `_.isNative` without bad shim checks. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a native function, + * else `false`. + */ + function baseIsNative(value) { + if (!isObject(value) || isMasked(value)) { + return false; + } + var pattern = isFunction(value) ? reIsNative : reIsHostCtor; + return pattern.test(toSource(value)); + } + + /** + * The base implementation of `_.isRegExp` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. + */ + function baseIsRegExp(value) { + return isObjectLike(value) && baseGetTag(value) == regexpTag; + } + + /** + * The base implementation of `_.isSet` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a set, else `false`. + */ + function baseIsSet(value) { + return isObjectLike(value) && getTag(value) == setTag; + } + + /** + * The base implementation of `_.isTypedArray` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. + */ + function baseIsTypedArray(value) { + return isObjectLike(value) && + isLength(value.length) && !!typedArrayTags[baseGetTag(value)]; + } + + /** + * The base implementation of `_.iteratee`. + * + * @private + * @param {*} [value=_.identity] The value to convert to an iteratee. + * @returns {Function} Returns the iteratee. + */ + function baseIteratee(value) { + // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9. + // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details. + if (typeof value == 'function') { + return value; + } + if (value == null) { + return identity; + } + if (typeof value == 'object') { + return isArray(value) + ? baseMatchesProperty(value[0], value[1]) + : baseMatches(value); + } + return property(value); + } + + /** + * The base implementation of `_.keys` which doesn't treat sparse arrays as dense. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function baseKeys(object) { + if (!isPrototype(object)) { + return nativeKeys(object); + } + var result = []; + for (var key in Object(object)) { + if (hasOwnProperty.call(object, key) && key != 'constructor') { + result.push(key); + } + } + return result; + } + + /** + * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function baseKeysIn(object) { + if (!isObject(object)) { + return nativeKeysIn(object); + } + var isProto = isPrototype(object), + result = []; + + for (var key in object) { + if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) { + result.push(key); + } + } + return result; + } + + /** + * The base implementation of `_.lt` which doesn't coerce arguments. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is less than `other`, + * else `false`. + */ + function baseLt(value, other) { + return value < other; + } + + /** + * The base implementation of `_.map` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + */ + function baseMap(collection, iteratee) { + var index = -1, + result = isArrayLike(collection) ? Array(collection.length) : []; + + baseEach(collection, function(value, key, collection) { + result[++index] = iteratee(value, key, collection); + }); + return result; + } + + /** + * The base implementation of `_.matches` which doesn't clone `source`. + * + * @private + * @param {Object} source The object of property values to match. + * @returns {Function} Returns the new spec function. + */ + function baseMatches(source) { + var matchData = getMatchData(source); + if (matchData.length == 1 && matchData[0][2]) { + return matchesStrictComparable(matchData[0][0], matchData[0][1]); + } + return function(object) { + return object === source || baseIsMatch(object, source, matchData); + }; + } + + /** + * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`. + * + * @private + * @param {string} path The path of the property to get. + * @param {*} srcValue The value to match. + * @returns {Function} Returns the new spec function. + */ + function baseMatchesProperty(path, srcValue) { + if (isKey(path) && isStrictComparable(srcValue)) { + return matchesStrictComparable(toKey(path), srcValue); + } + return function(object) { + var objValue = get(object, path); + return (objValue === undefined && objValue === srcValue) + ? hasIn(object, path) + : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG); + }; + } + + /** + * The base implementation of `_.merge` without support for multiple sources. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @param {number} srcIndex The index of `source`. + * @param {Function} [customizer] The function to customize merged values. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + */ + function baseMerge(object, source, srcIndex, customizer, stack) { + if (object === source) { + return; + } + baseFor(source, function(srcValue, key) { + stack || (stack = new Stack); + if (isObject(srcValue)) { + baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack); + } + else { + var newValue = customizer + ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack) + : undefined; + + if (newValue === undefined) { + newValue = srcValue; + } + assignMergeValue(object, key, newValue); + } + }, keysIn); + } + + /** + * A specialized version of `baseMerge` for arrays and objects which performs + * deep merges and tracks traversed objects enabling objects with circular + * references to be merged. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @param {string} key The key of the value to merge. + * @param {number} srcIndex The index of `source`. + * @param {Function} mergeFunc The function to merge values. + * @param {Function} [customizer] The function to customize assigned values. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + */ + function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) { + var objValue = safeGet(object, key), + srcValue = safeGet(source, key), + stacked = stack.get(srcValue); + + if (stacked) { + assignMergeValue(object, key, stacked); + return; + } + var newValue = customizer + ? customizer(objValue, srcValue, (key + ''), object, source, stack) + : undefined; + + var isCommon = newValue === undefined; + + if (isCommon) { + var isArr = isArray(srcValue), + isBuff = !isArr && isBuffer(srcValue), + isTyped = !isArr && !isBuff && isTypedArray(srcValue); + + newValue = srcValue; + if (isArr || isBuff || isTyped) { + if (isArray(objValue)) { + newValue = objValue; + } + else if (isArrayLikeObject(objValue)) { + newValue = copyArray(objValue); + } + else if (isBuff) { + isCommon = false; + newValue = cloneBuffer(srcValue, true); + } + else if (isTyped) { + isCommon = false; + newValue = cloneTypedArray(srcValue, true); + } + else { + newValue = []; + } + } + else if (isPlainObject(srcValue) || isArguments(srcValue)) { + newValue = objValue; + if (isArguments(objValue)) { + newValue = toPlainObject(objValue); + } + else if (!isObject(objValue) || isFunction(objValue)) { + newValue = initCloneObject(srcValue); + } + } + else { + isCommon = false; + } + } + if (isCommon) { + // Recursively merge objects and arrays (susceptible to call stack limits). + stack.set(srcValue, newValue); + mergeFunc(newValue, srcValue, srcIndex, customizer, stack); + stack['delete'](srcValue); + } + assignMergeValue(object, key, newValue); + } + + /** + * The base implementation of `_.nth` which doesn't coerce arguments. + * + * @private + * @param {Array} array The array to query. + * @param {number} n The index of the element to return. + * @returns {*} Returns the nth element of `array`. + */ + function baseNth(array, n) { + var length = array.length; + if (!length) { + return; + } + n += n < 0 ? length : 0; + return isIndex(n, length) ? array[n] : undefined; + } + + /** + * The base implementation of `_.orderBy` without param guards. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by. + * @param {string[]} orders The sort orders of `iteratees`. + * @returns {Array} Returns the new sorted array. + */ + function baseOrderBy(collection, iteratees, orders) { + if (iteratees.length) { + iteratees = arrayMap(iteratees, function(iteratee) { + if (isArray(iteratee)) { + return function(value) { + return baseGet(value, iteratee.length === 1 ? iteratee[0] : iteratee); + } + } + return iteratee; + }); + } else { + iteratees = [identity]; + } + + var index = -1; + iteratees = arrayMap(iteratees, baseUnary(getIteratee())); + + var result = baseMap(collection, function(value, key, collection) { + var criteria = arrayMap(iteratees, function(iteratee) { + return iteratee(value); + }); + return { 'criteria': criteria, 'index': ++index, 'value': value }; + }); + + return baseSortBy(result, function(object, other) { + return compareMultiple(object, other, orders); + }); + } + + /** + * The base implementation of `_.pick` without support for individual + * property identifiers. + * + * @private + * @param {Object} object The source object. + * @param {string[]} paths The property paths to pick. + * @returns {Object} Returns the new object. + */ + function basePick(object, paths) { + return basePickBy(object, paths, function(value, path) { + return hasIn(object, path); + }); + } + + /** + * The base implementation of `_.pickBy` without support for iteratee shorthands. + * + * @private + * @param {Object} object The source object. + * @param {string[]} paths The property paths to pick. + * @param {Function} predicate The function invoked per property. + * @returns {Object} Returns the new object. + */ + function basePickBy(object, paths, predicate) { + var index = -1, + length = paths.length, + result = {}; + + while (++index < length) { + var path = paths[index], + value = baseGet(object, path); + + if (predicate(value, path)) { + baseSet(result, castPath(path, object), value); + } + } + return result; + } + + /** + * A specialized version of `baseProperty` which supports deep paths. + * + * @private + * @param {Array|string} path The path of the property to get. + * @returns {Function} Returns the new accessor function. + */ + function basePropertyDeep(path) { + return function(object) { + return baseGet(object, path); + }; + } + + /** + * The base implementation of `_.pullAllBy` without support for iteratee + * shorthands. + * + * @private + * @param {Array} array The array to modify. + * @param {Array} values The values to remove. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns `array`. + */ + function basePullAll(array, values, iteratee, comparator) { + var indexOf = comparator ? baseIndexOfWith : baseIndexOf, + index = -1, + length = values.length, + seen = array; + + if (array === values) { + values = copyArray(values); + } + if (iteratee) { + seen = arrayMap(array, baseUnary(iteratee)); + } + while (++index < length) { + var fromIndex = 0, + value = values[index], + computed = iteratee ? iteratee(value) : value; + + while ((fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1) { + if (seen !== array) { + splice.call(seen, fromIndex, 1); + } + splice.call(array, fromIndex, 1); + } + } + return array; + } + + /** + * The base implementation of `_.pullAt` without support for individual + * indexes or capturing the removed elements. + * + * @private + * @param {Array} array The array to modify. + * @param {number[]} indexes The indexes of elements to remove. + * @returns {Array} Returns `array`. + */ + function basePullAt(array, indexes) { + var length = array ? indexes.length : 0, + lastIndex = length - 1; + + while (length--) { + var index = indexes[length]; + if (length == lastIndex || index !== previous) { + var previous = index; + if (isIndex(index)) { + splice.call(array, index, 1); + } else { + baseUnset(array, index); + } + } + } + return array; + } + + /** + * The base implementation of `_.random` without support for returning + * floating-point numbers. + * + * @private + * @param {number} lower The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the random number. + */ + function baseRandom(lower, upper) { + return lower + nativeFloor(nativeRandom() * (upper - lower + 1)); + } + + /** + * The base implementation of `_.range` and `_.rangeRight` which doesn't + * coerce arguments. + * + * @private + * @param {number} start The start of the range. + * @param {number} end The end of the range. + * @param {number} step The value to increment or decrement by. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Array} Returns the range of numbers. + */ + function baseRange(start, end, step, fromRight) { + var index = -1, + length = nativeMax(nativeCeil((end - start) / (step || 1)), 0), + result = Array(length); + + while (length--) { + result[fromRight ? length : ++index] = start; + start += step; + } + return result; + } + + /** + * The base implementation of `_.repeat` which doesn't coerce arguments. + * + * @private + * @param {string} string The string to repeat. + * @param {number} n The number of times to repeat the string. + * @returns {string} Returns the repeated string. + */ + function baseRepeat(string, n) { + var result = ''; + if (!string || n < 1 || n > MAX_SAFE_INTEGER) { + return result; + } + // Leverage the exponentiation by squaring algorithm for a faster repeat. + // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details. + do { + if (n % 2) { + result += string; + } + n = nativeFloor(n / 2); + if (n) { + string += string; + } + } while (n); + + return result; + } + + /** + * The base implementation of `_.rest` which doesn't validate or coerce arguments. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @returns {Function} Returns the new function. + */ + function baseRest(func, start) { + return setToString(overRest(func, start, identity), func + ''); + } + + /** + * The base implementation of `_.sample`. + * + * @private + * @param {Array|Object} collection The collection to sample. + * @returns {*} Returns the random element. + */ + function baseSample(collection) { + return arraySample(values(collection)); + } + + /** + * The base implementation of `_.sampleSize` without param guards. + * + * @private + * @param {Array|Object} collection The collection to sample. + * @param {number} n The number of elements to sample. + * @returns {Array} Returns the random elements. + */ + function baseSampleSize(collection, n) { + var array = values(collection); + return shuffleSelf(array, baseClamp(n, 0, array.length)); + } + + /** + * The base implementation of `_.set`. + * + * @private + * @param {Object} object The object to modify. + * @param {Array|string} path The path of the property to set. + * @param {*} value The value to set. + * @param {Function} [customizer] The function to customize path creation. + * @returns {Object} Returns `object`. + */ + function baseSet(object, path, value, customizer) { + if (!isObject(object)) { + return object; + } + path = castPath(path, object); + + var index = -1, + length = path.length, + lastIndex = length - 1, + nested = object; + + while (nested != null && ++index < length) { + var key = toKey(path[index]), + newValue = value; + + if (key === '__proto__' || key === 'constructor' || key === 'prototype') { + return object; + } + + if (index != lastIndex) { + var objValue = nested[key]; + newValue = customizer ? customizer(objValue, key, nested) : undefined; + if (newValue === undefined) { + newValue = isObject(objValue) + ? objValue + : (isIndex(path[index + 1]) ? [] : {}); + } + } + assignValue(nested, key, newValue); + nested = nested[key]; + } + return object; + } + + /** + * The base implementation of `setData` without support for hot loop shorting. + * + * @private + * @param {Function} func The function to associate metadata with. + * @param {*} data The metadata. + * @returns {Function} Returns `func`. + */ + var baseSetData = !metaMap ? identity : function(func, data) { + metaMap.set(func, data); + return func; + }; + + /** + * The base implementation of `setToString` without support for hot loop shorting. + * + * @private + * @param {Function} func The function to modify. + * @param {Function} string The `toString` result. + * @returns {Function} Returns `func`. + */ + var baseSetToString = !defineProperty ? identity : function(func, string) { + return defineProperty(func, 'toString', { + 'configurable': true, + 'enumerable': false, + 'value': constant(string), + 'writable': true + }); + }; + + /** + * The base implementation of `_.shuffle`. + * + * @private + * @param {Array|Object} collection The collection to shuffle. + * @returns {Array} Returns the new shuffled array. + */ + function baseShuffle(collection) { + return shuffleSelf(values(collection)); + } + + /** + * The base implementation of `_.slice` without an iteratee call guard. + * + * @private + * @param {Array} array The array to slice. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the slice of `array`. + */ + function baseSlice(array, start, end) { + var index = -1, + length = array.length; + + if (start < 0) { + start = -start > length ? 0 : (length + start); + } + end = end > length ? length : end; + if (end < 0) { + end += length; + } + length = start > end ? 0 : ((end - start) >>> 0); + start >>>= 0; + + var result = Array(length); + while (++index < length) { + result[index] = array[index + start]; + } + return result; + } + + /** + * The base implementation of `_.some` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + */ + function baseSome(collection, predicate) { + var result; + + baseEach(collection, function(value, index, collection) { + result = predicate(value, index, collection); + return !result; + }); + return !!result; + } + + /** + * The base implementation of `_.sortedIndex` and `_.sortedLastIndex` which + * performs a binary search of `array` to determine the index at which `value` + * should be inserted into `array` in order to maintain its sort order. + * + * @private + * @param {Array} array The sorted array to inspect. + * @param {*} value The value to evaluate. + * @param {boolean} [retHighest] Specify returning the highest qualified index. + * @returns {number} Returns the index at which `value` should be inserted + * into `array`. + */ + function baseSortedIndex(array, value, retHighest) { + var low = 0, + high = array == null ? low : array.length; + + if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) { + while (low < high) { + var mid = (low + high) >>> 1, + computed = array[mid]; + + if (computed !== null && !isSymbol(computed) && + (retHighest ? (computed <= value) : (computed < value))) { + low = mid + 1; + } else { + high = mid; + } + } + return high; + } + return baseSortedIndexBy(array, value, identity, retHighest); + } + + /** + * The base implementation of `_.sortedIndexBy` and `_.sortedLastIndexBy` + * which invokes `iteratee` for `value` and each element of `array` to compute + * their sort ranking. The iteratee is invoked with one argument; (value). + * + * @private + * @param {Array} array The sorted array to inspect. + * @param {*} value The value to evaluate. + * @param {Function} iteratee The iteratee invoked per element. + * @param {boolean} [retHighest] Specify returning the highest qualified index. + * @returns {number} Returns the index at which `value` should be inserted + * into `array`. + */ + function baseSortedIndexBy(array, value, iteratee, retHighest) { + var low = 0, + high = array == null ? 0 : array.length; + if (high === 0) { + return 0; + } + + value = iteratee(value); + var valIsNaN = value !== value, + valIsNull = value === null, + valIsSymbol = isSymbol(value), + valIsUndefined = value === undefined; + + while (low < high) { + var mid = nativeFloor((low + high) / 2), + computed = iteratee(array[mid]), + othIsDefined = computed !== undefined, + othIsNull = computed === null, + othIsReflexive = computed === computed, + othIsSymbol = isSymbol(computed); + + if (valIsNaN) { + var setLow = retHighest || othIsReflexive; + } else if (valIsUndefined) { + setLow = othIsReflexive && (retHighest || othIsDefined); + } else if (valIsNull) { + setLow = othIsReflexive && othIsDefined && (retHighest || !othIsNull); + } else if (valIsSymbol) { + setLow = othIsReflexive && othIsDefined && !othIsNull && (retHighest || !othIsSymbol); + } else if (othIsNull || othIsSymbol) { + setLow = false; + } else { + setLow = retHighest ? (computed <= value) : (computed < value); + } + if (setLow) { + low = mid + 1; + } else { + high = mid; + } + } + return nativeMin(high, MAX_ARRAY_INDEX); + } + + /** + * The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without + * support for iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Function} [iteratee] The iteratee invoked per element. + * @returns {Array} Returns the new duplicate free array. + */ + function baseSortedUniq(array, iteratee) { + var index = -1, + length = array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index], + computed = iteratee ? iteratee(value) : value; + + if (!index || !eq(computed, seen)) { + var seen = computed; + result[resIndex++] = value === 0 ? 0 : value; + } + } + return result; + } + + /** + * The base implementation of `_.toNumber` which doesn't ensure correct + * conversions of binary, hexadecimal, or octal string values. + * + * @private + * @param {*} value The value to process. + * @returns {number} Returns the number. + */ + function baseToNumber(value) { + if (typeof value == 'number') { + return value; + } + if (isSymbol(value)) { + return NAN; + } + return +value; + } + + /** + * The base implementation of `_.toString` which doesn't convert nullish + * values to empty strings. + * + * @private + * @param {*} value The value to process. + * @returns {string} Returns the string. + */ + function baseToString(value) { + // Exit early for strings to avoid a performance hit in some environments. + if (typeof value == 'string') { + return value; + } + if (isArray(value)) { + // Recursively convert values (susceptible to call stack limits). + return arrayMap(value, baseToString) + ''; + } + if (isSymbol(value)) { + return symbolToString ? symbolToString.call(value) : ''; + } + var result = (value + ''); + return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; + } + + /** + * The base implementation of `_.uniqBy` without support for iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new duplicate free array. + */ + function baseUniq(array, iteratee, comparator) { + var index = -1, + includes = arrayIncludes, + length = array.length, + isCommon = true, + result = [], + seen = result; + + if (comparator) { + isCommon = false; + includes = arrayIncludesWith; + } + else if (length >= LARGE_ARRAY_SIZE) { + var set = iteratee ? null : createSet(array); + if (set) { + return setToArray(set); + } + isCommon = false; + includes = cacheHas; + seen = new SetCache; + } + else { + seen = iteratee ? [] : result; + } + outer: + while (++index < length) { + var value = array[index], + computed = iteratee ? iteratee(value) : value; + + value = (comparator || value !== 0) ? value : 0; + if (isCommon && computed === computed) { + var seenIndex = seen.length; + while (seenIndex--) { + if (seen[seenIndex] === computed) { + continue outer; + } + } + if (iteratee) { + seen.push(computed); + } + result.push(value); + } + else if (!includes(seen, computed, comparator)) { + if (seen !== result) { + seen.push(computed); + } + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.unset`. + * + * @private + * @param {Object} object The object to modify. + * @param {Array|string} path The property path to unset. + * @returns {boolean} Returns `true` if the property is deleted, else `false`. + */ + function baseUnset(object, path) { + path = castPath(path, object); + object = parent(object, path); + return object == null || delete object[toKey(last(path))]; + } + + /** + * The base implementation of `_.update`. + * + * @private + * @param {Object} object The object to modify. + * @param {Array|string} path The path of the property to update. + * @param {Function} updater The function to produce the updated value. + * @param {Function} [customizer] The function to customize path creation. + * @returns {Object} Returns `object`. + */ + function baseUpdate(object, path, updater, customizer) { + return baseSet(object, path, updater(baseGet(object, path)), customizer); + } + + /** + * The base implementation of methods like `_.dropWhile` and `_.takeWhile` + * without support for iteratee shorthands. + * + * @private + * @param {Array} array The array to query. + * @param {Function} predicate The function invoked per iteration. + * @param {boolean} [isDrop] Specify dropping elements instead of taking them. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Array} Returns the slice of `array`. + */ + function baseWhile(array, predicate, isDrop, fromRight) { + var length = array.length, + index = fromRight ? length : -1; + + while ((fromRight ? index-- : ++index < length) && + predicate(array[index], index, array)) {} + + return isDrop + ? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length)) + : baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index)); + } + + /** + * The base implementation of `wrapperValue` which returns the result of + * performing a sequence of actions on the unwrapped `value`, where each + * successive action is supplied the return value of the previous. + * + * @private + * @param {*} value The unwrapped value. + * @param {Array} actions Actions to perform to resolve the unwrapped value. + * @returns {*} Returns the resolved value. + */ + function baseWrapperValue(value, actions) { + var result = value; + if (result instanceof LazyWrapper) { + result = result.value(); + } + return arrayReduce(actions, function(result, action) { + return action.func.apply(action.thisArg, arrayPush([result], action.args)); + }, result); + } + + /** + * The base implementation of methods like `_.xor`, without support for + * iteratee shorthands, that accepts an array of arrays to inspect. + * + * @private + * @param {Array} arrays The arrays to inspect. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of values. + */ + function baseXor(arrays, iteratee, comparator) { + var length = arrays.length; + if (length < 2) { + return length ? baseUniq(arrays[0]) : []; + } + var index = -1, + result = Array(length); + + while (++index < length) { + var array = arrays[index], + othIndex = -1; + + while (++othIndex < length) { + if (othIndex != index) { + result[index] = baseDifference(result[index] || array, arrays[othIndex], iteratee, comparator); + } + } + } + return baseUniq(baseFlatten(result, 1), iteratee, comparator); + } + + /** + * This base implementation of `_.zipObject` which assigns values using `assignFunc`. + * + * @private + * @param {Array} props The property identifiers. + * @param {Array} values The property values. + * @param {Function} assignFunc The function to assign values. + * @returns {Object} Returns the new object. + */ + function baseZipObject(props, values, assignFunc) { + var index = -1, + length = props.length, + valsLength = values.length, + result = {}; + + while (++index < length) { + var value = index < valsLength ? values[index] : undefined; + assignFunc(result, props[index], value); + } + return result; + } + + /** + * Casts `value` to an empty array if it's not an array like object. + * + * @private + * @param {*} value The value to inspect. + * @returns {Array|Object} Returns the cast array-like object. + */ + function castArrayLikeObject(value) { + return isArrayLikeObject(value) ? value : []; + } + + /** + * Casts `value` to `identity` if it's not a function. + * + * @private + * @param {*} value The value to inspect. + * @returns {Function} Returns cast function. + */ + function castFunction(value) { + return typeof value == 'function' ? value : identity; + } + + /** + * Casts `value` to a path array if it's not one. + * + * @private + * @param {*} value The value to inspect. + * @param {Object} [object] The object to query keys on. + * @returns {Array} Returns the cast property path array. + */ + function castPath(value, object) { + if (isArray(value)) { + return value; + } + return isKey(value, object) ? [value] : stringToPath(toString(value)); + } + + /** + * A `baseRest` alias which can be replaced with `identity` by module + * replacement plugins. + * + * @private + * @type {Function} + * @param {Function} func The function to apply a rest parameter to. + * @returns {Function} Returns the new function. + */ + var castRest = baseRest; + + /** + * Casts `array` to a slice if it's needed. + * + * @private + * @param {Array} array The array to inspect. + * @param {number} start The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the cast slice. + */ + function castSlice(array, start, end) { + var length = array.length; + end = end === undefined ? length : end; + return (!start && end >= length) ? array : baseSlice(array, start, end); + } + + /** + * A simple wrapper around the global [`clearTimeout`](https://mdn.io/clearTimeout). + * + * @private + * @param {number|Object} id The timer id or timeout object of the timer to clear. + */ + var clearTimeout = ctxClearTimeout || function(id) { + return root.clearTimeout(id); + }; + + /** + * Creates a clone of `buffer`. + * + * @private + * @param {Buffer} buffer The buffer to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Buffer} Returns the cloned buffer. + */ + function cloneBuffer(buffer, isDeep) { + if (isDeep) { + return buffer.slice(); + } + var length = buffer.length, + result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length); + + buffer.copy(result); + return result; + } + + /** + * Creates a clone of `arrayBuffer`. + * + * @private + * @param {ArrayBuffer} arrayBuffer The array buffer to clone. + * @returns {ArrayBuffer} Returns the cloned array buffer. + */ + function cloneArrayBuffer(arrayBuffer) { + var result = new arrayBuffer.constructor(arrayBuffer.byteLength); + new Uint8Array(result).set(new Uint8Array(arrayBuffer)); + return result; + } + + /** + * Creates a clone of `dataView`. + * + * @private + * @param {Object} dataView The data view to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the cloned data view. + */ + function cloneDataView(dataView, isDeep) { + var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer; + return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength); + } + + /** + * Creates a clone of `regexp`. + * + * @private + * @param {Object} regexp The regexp to clone. + * @returns {Object} Returns the cloned regexp. + */ + function cloneRegExp(regexp) { + var result = new regexp.constructor(regexp.source, reFlags.exec(regexp)); + result.lastIndex = regexp.lastIndex; + return result; + } + + /** + * Creates a clone of the `symbol` object. + * + * @private + * @param {Object} symbol The symbol object to clone. + * @returns {Object} Returns the cloned symbol object. + */ + function cloneSymbol(symbol) { + return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {}; + } + + /** + * Creates a clone of `typedArray`. + * + * @private + * @param {Object} typedArray The typed array to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the cloned typed array. + */ + function cloneTypedArray(typedArray, isDeep) { + var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer; + return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length); + } + + /** + * Compares values to sort them in ascending order. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {number} Returns the sort order indicator for `value`. + */ + function compareAscending(value, other) { + if (value !== other) { + var valIsDefined = value !== undefined, + valIsNull = value === null, + valIsReflexive = value === value, + valIsSymbol = isSymbol(value); + + var othIsDefined = other !== undefined, + othIsNull = other === null, + othIsReflexive = other === other, + othIsSymbol = isSymbol(other); + + if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) || + (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) || + (valIsNull && othIsDefined && othIsReflexive) || + (!valIsDefined && othIsReflexive) || + !valIsReflexive) { + return 1; + } + if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) || + (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) || + (othIsNull && valIsDefined && valIsReflexive) || + (!othIsDefined && valIsReflexive) || + !othIsReflexive) { + return -1; + } + } + return 0; + } + + /** + * Used by `_.orderBy` to compare multiple properties of a value to another + * and stable sort them. + * + * If `orders` is unspecified, all values are sorted in ascending order. Otherwise, + * specify an order of "desc" for descending or "asc" for ascending sort order + * of corresponding values. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {boolean[]|string[]} orders The order to sort by for each property. + * @returns {number} Returns the sort order indicator for `object`. + */ + function compareMultiple(object, other, orders) { + var index = -1, + objCriteria = object.criteria, + othCriteria = other.criteria, + length = objCriteria.length, + ordersLength = orders.length; + + while (++index < length) { + var result = compareAscending(objCriteria[index], othCriteria[index]); + if (result) { + if (index >= ordersLength) { + return result; + } + var order = orders[index]; + return result * (order == 'desc' ? -1 : 1); + } + } + // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications + // that causes it, under certain circumstances, to provide the same value for + // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247 + // for more details. + // + // This also ensures a stable sort in V8 and other engines. + // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details. + return object.index - other.index; + } + + /** + * Creates an array that is the composition of partially applied arguments, + * placeholders, and provided arguments into a single array of arguments. + * + * @private + * @param {Array} args The provided arguments. + * @param {Array} partials The arguments to prepend to those provided. + * @param {Array} holders The `partials` placeholder indexes. + * @params {boolean} [isCurried] Specify composing for a curried function. + * @returns {Array} Returns the new array of composed arguments. + */ + function composeArgs(args, partials, holders, isCurried) { + var argsIndex = -1, + argsLength = args.length, + holdersLength = holders.length, + leftIndex = -1, + leftLength = partials.length, + rangeLength = nativeMax(argsLength - holdersLength, 0), + result = Array(leftLength + rangeLength), + isUncurried = !isCurried; + + while (++leftIndex < leftLength) { + result[leftIndex] = partials[leftIndex]; + } + while (++argsIndex < holdersLength) { + if (isUncurried || argsIndex < argsLength) { + result[holders[argsIndex]] = args[argsIndex]; + } + } + while (rangeLength--) { + result[leftIndex++] = args[argsIndex++]; + } + return result; + } + + /** + * This function is like `composeArgs` except that the arguments composition + * is tailored for `_.partialRight`. + * + * @private + * @param {Array} args The provided arguments. + * @param {Array} partials The arguments to append to those provided. + * @param {Array} holders The `partials` placeholder indexes. + * @params {boolean} [isCurried] Specify composing for a curried function. + * @returns {Array} Returns the new array of composed arguments. + */ + function composeArgsRight(args, partials, holders, isCurried) { + var argsIndex = -1, + argsLength = args.length, + holdersIndex = -1, + holdersLength = holders.length, + rightIndex = -1, + rightLength = partials.length, + rangeLength = nativeMax(argsLength - holdersLength, 0), + result = Array(rangeLength + rightLength), + isUncurried = !isCurried; + + while (++argsIndex < rangeLength) { + result[argsIndex] = args[argsIndex]; + } + var offset = argsIndex; + while (++rightIndex < rightLength) { + result[offset + rightIndex] = partials[rightIndex]; + } + while (++holdersIndex < holdersLength) { + if (isUncurried || argsIndex < argsLength) { + result[offset + holders[holdersIndex]] = args[argsIndex++]; + } + } + return result; + } + + /** + * Copies the values of `source` to `array`. + * + * @private + * @param {Array} source The array to copy values from. + * @param {Array} [array=[]] The array to copy values to. + * @returns {Array} Returns `array`. + */ + function copyArray(source, array) { + var index = -1, + length = source.length; + + array || (array = Array(length)); + while (++index < length) { + array[index] = source[index]; + } + return array; + } + + /** + * Copies properties of `source` to `object`. + * + * @private + * @param {Object} source The object to copy properties from. + * @param {Array} props The property identifiers to copy. + * @param {Object} [object={}] The object to copy properties to. + * @param {Function} [customizer] The function to customize copied values. + * @returns {Object} Returns `object`. + */ + function copyObject(source, props, object, customizer) { + var isNew = !object; + object || (object = {}); + + var index = -1, + length = props.length; + + while (++index < length) { + var key = props[index]; + + var newValue = customizer + ? customizer(object[key], source[key], key, object, source) + : undefined; + + if (newValue === undefined) { + newValue = source[key]; + } + if (isNew) { + baseAssignValue(object, key, newValue); + } else { + assignValue(object, key, newValue); + } + } + return object; + } + + /** + * Copies own symbols of `source` to `object`. + * + * @private + * @param {Object} source The object to copy symbols from. + * @param {Object} [object={}] The object to copy symbols to. + * @returns {Object} Returns `object`. + */ + function copySymbols(source, object) { + return copyObject(source, getSymbols(source), object); + } + + /** + * Copies own and inherited symbols of `source` to `object`. + * + * @private + * @param {Object} source The object to copy symbols from. + * @param {Object} [object={}] The object to copy symbols to. + * @returns {Object} Returns `object`. + */ + function copySymbolsIn(source, object) { + return copyObject(source, getSymbolsIn(source), object); + } + + /** + * Creates a function like `_.groupBy`. + * + * @private + * @param {Function} setter The function to set accumulator values. + * @param {Function} [initializer] The accumulator object initializer. + * @returns {Function} Returns the new aggregator function. + */ + function createAggregator(setter, initializer) { + return function(collection, iteratee) { + var func = isArray(collection) ? arrayAggregator : baseAggregator, + accumulator = initializer ? initializer() : {}; + + return func(collection, setter, getIteratee(iteratee, 2), accumulator); + }; + } + + /** + * Creates a function like `_.assign`. + * + * @private + * @param {Function} assigner The function to assign values. + * @returns {Function} Returns the new assigner function. + */ + function createAssigner(assigner) { + return baseRest(function(object, sources) { + var index = -1, + length = sources.length, + customizer = length > 1 ? sources[length - 1] : undefined, + guard = length > 2 ? sources[2] : undefined; + + customizer = (assigner.length > 3 && typeof customizer == 'function') + ? (length--, customizer) + : undefined; + + if (guard && isIterateeCall(sources[0], sources[1], guard)) { + customizer = length < 3 ? undefined : customizer; + length = 1; + } + object = Object(object); + while (++index < length) { + var source = sources[index]; + if (source) { + assigner(object, source, index, customizer); + } + } + return object; + }); + } + + /** + * Creates a `baseEach` or `baseEachRight` function. + * + * @private + * @param {Function} eachFunc The function to iterate over a collection. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new base function. + */ + function createBaseEach(eachFunc, fromRight) { + return function(collection, iteratee) { + if (collection == null) { + return collection; + } + if (!isArrayLike(collection)) { + return eachFunc(collection, iteratee); + } + var length = collection.length, + index = fromRight ? length : -1, + iterable = Object(collection); + + while ((fromRight ? index-- : ++index < length)) { + if (iteratee(iterable[index], index, iterable) === false) { + break; + } + } + return collection; + }; + } + + /** + * Creates a base function for methods like `_.forIn` and `_.forOwn`. + * + * @private + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new base function. + */ + function createBaseFor(fromRight) { + return function(object, iteratee, keysFunc) { + var index = -1, + iterable = Object(object), + props = keysFunc(object), + length = props.length; + + while (length--) { + var key = props[fromRight ? length : ++index]; + if (iteratee(iterable[key], key, iterable) === false) { + break; + } + } + return object; + }; + } + + /** + * Creates a function that wraps `func` to invoke it with the optional `this` + * binding of `thisArg`. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} [thisArg] The `this` binding of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createBind(func, bitmask, thisArg) { + var isBind = bitmask & WRAP_BIND_FLAG, + Ctor = createCtor(func); + + function wrapper() { + var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + return fn.apply(isBind ? thisArg : this, arguments); + } + return wrapper; + } + + /** + * Creates a function like `_.lowerFirst`. + * + * @private + * @param {string} methodName The name of the `String` case method to use. + * @returns {Function} Returns the new case function. + */ + function createCaseFirst(methodName) { + return function(string) { + string = toString(string); + + var strSymbols = hasUnicode(string) + ? stringToArray(string) + : undefined; + + var chr = strSymbols + ? strSymbols[0] + : string.charAt(0); + + var trailing = strSymbols + ? castSlice(strSymbols, 1).join('') + : string.slice(1); + + return chr[methodName]() + trailing; + }; + } + + /** + * Creates a function like `_.camelCase`. + * + * @private + * @param {Function} callback The function to combine each word. + * @returns {Function} Returns the new compounder function. + */ + function createCompounder(callback) { + return function(string) { + return arrayReduce(words(deburr(string).replace(reApos, '')), callback, ''); + }; + } + + /** + * Creates a function that produces an instance of `Ctor` regardless of + * whether it was invoked as part of a `new` expression or by `call` or `apply`. + * + * @private + * @param {Function} Ctor The constructor to wrap. + * @returns {Function} Returns the new wrapped function. + */ + function createCtor(Ctor) { + return function() { + // Use a `switch` statement to work with class constructors. See + // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist + // for more details. + var args = arguments; + switch (args.length) { + case 0: return new Ctor; + case 1: return new Ctor(args[0]); + case 2: return new Ctor(args[0], args[1]); + case 3: return new Ctor(args[0], args[1], args[2]); + case 4: return new Ctor(args[0], args[1], args[2], args[3]); + case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]); + case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]); + case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]); + } + var thisBinding = baseCreate(Ctor.prototype), + result = Ctor.apply(thisBinding, args); + + // Mimic the constructor's `return` behavior. + // See https://es5.github.io/#x13.2.2 for more details. + return isObject(result) ? result : thisBinding; + }; + } + + /** + * Creates a function that wraps `func` to enable currying. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {number} arity The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createCurry(func, bitmask, arity) { + var Ctor = createCtor(func); + + function wrapper() { + var length = arguments.length, + args = Array(length), + index = length, + placeholder = getHolder(wrapper); + + while (index--) { + args[index] = arguments[index]; + } + var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder) + ? [] + : replaceHolders(args, placeholder); + + length -= holders.length; + if (length < arity) { + return createRecurry( + func, bitmask, createHybrid, wrapper.placeholder, undefined, + args, holders, undefined, undefined, arity - length); + } + var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + return apply(fn, this, args); + } + return wrapper; + } + + /** + * Creates a `_.find` or `_.findLast` function. + * + * @private + * @param {Function} findIndexFunc The function to find the collection index. + * @returns {Function} Returns the new find function. + */ + function createFind(findIndexFunc) { + return function(collection, predicate, fromIndex) { + var iterable = Object(collection); + if (!isArrayLike(collection)) { + var iteratee = getIteratee(predicate, 3); + collection = keys(collection); + predicate = function(key) { return iteratee(iterable[key], key, iterable); }; + } + var index = findIndexFunc(collection, predicate, fromIndex); + return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined; + }; + } + + /** + * Creates a `_.flow` or `_.flowRight` function. + * + * @private + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new flow function. + */ + function createFlow(fromRight) { + return flatRest(function(funcs) { + var length = funcs.length, + index = length, + prereq = LodashWrapper.prototype.thru; + + if (fromRight) { + funcs.reverse(); + } + while (index--) { + var func = funcs[index]; + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + if (prereq && !wrapper && getFuncName(func) == 'wrapper') { + var wrapper = new LodashWrapper([], true); + } + } + index = wrapper ? index : length; + while (++index < length) { + func = funcs[index]; + + var funcName = getFuncName(func), + data = funcName == 'wrapper' ? getData(func) : undefined; + + if (data && isLaziable(data[0]) && + data[1] == (WRAP_ARY_FLAG | WRAP_CURRY_FLAG | WRAP_PARTIAL_FLAG | WRAP_REARG_FLAG) && + !data[4].length && data[9] == 1 + ) { + wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]); + } else { + wrapper = (func.length == 1 && isLaziable(func)) + ? wrapper[funcName]() + : wrapper.thru(func); + } + } + return function() { + var args = arguments, + value = args[0]; + + if (wrapper && args.length == 1 && isArray(value)) { + return wrapper.plant(value).value(); + } + var index = 0, + result = length ? funcs[index].apply(this, args) : value; + + while (++index < length) { + result = funcs[index].call(this, result); + } + return result; + }; + }); + } + + /** + * Creates a function that wraps `func` to invoke it with optional `this` + * binding of `thisArg`, partial application, and currying. + * + * @private + * @param {Function|string} func The function or method name to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to prepend to those provided to + * the new function. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [partialsRight] The arguments to append to those provided + * to the new function. + * @param {Array} [holdersRight] The `partialsRight` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) { + var isAry = bitmask & WRAP_ARY_FLAG, + isBind = bitmask & WRAP_BIND_FLAG, + isBindKey = bitmask & WRAP_BIND_KEY_FLAG, + isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG), + isFlip = bitmask & WRAP_FLIP_FLAG, + Ctor = isBindKey ? undefined : createCtor(func); + + function wrapper() { + var length = arguments.length, + args = Array(length), + index = length; + + while (index--) { + args[index] = arguments[index]; + } + if (isCurried) { + var placeholder = getHolder(wrapper), + holdersCount = countHolders(args, placeholder); + } + if (partials) { + args = composeArgs(args, partials, holders, isCurried); + } + if (partialsRight) { + args = composeArgsRight(args, partialsRight, holdersRight, isCurried); + } + length -= holdersCount; + if (isCurried && length < arity) { + var newHolders = replaceHolders(args, placeholder); + return createRecurry( + func, bitmask, createHybrid, wrapper.placeholder, thisArg, + args, newHolders, argPos, ary, arity - length + ); + } + var thisBinding = isBind ? thisArg : this, + fn = isBindKey ? thisBinding[func] : func; + + length = args.length; + if (argPos) { + args = reorder(args, argPos); + } else if (isFlip && length > 1) { + args.reverse(); + } + if (isAry && ary < length) { + args.length = ary; + } + if (this && this !== root && this instanceof wrapper) { + fn = Ctor || createCtor(fn); + } + return fn.apply(thisBinding, args); + } + return wrapper; + } + + /** + * Creates a function like `_.invertBy`. + * + * @private + * @param {Function} setter The function to set accumulator values. + * @param {Function} toIteratee The function to resolve iteratees. + * @returns {Function} Returns the new inverter function. + */ + function createInverter(setter, toIteratee) { + return function(object, iteratee) { + return baseInverter(object, setter, toIteratee(iteratee), {}); + }; + } + + /** + * Creates a function that performs a mathematical operation on two values. + * + * @private + * @param {Function} operator The function to perform the operation. + * @param {number} [defaultValue] The value used for `undefined` arguments. + * @returns {Function} Returns the new mathematical operation function. + */ + function createMathOperation(operator, defaultValue) { + return function(value, other) { + var result; + if (value === undefined && other === undefined) { + return defaultValue; + } + if (value !== undefined) { + result = value; + } + if (other !== undefined) { + if (result === undefined) { + return other; + } + if (typeof value == 'string' || typeof other == 'string') { + value = baseToString(value); + other = baseToString(other); + } else { + value = baseToNumber(value); + other = baseToNumber(other); + } + result = operator(value, other); + } + return result; + }; + } + + /** + * Creates a function like `_.over`. + * + * @private + * @param {Function} arrayFunc The function to iterate over iteratees. + * @returns {Function} Returns the new over function. + */ + function createOver(arrayFunc) { + return flatRest(function(iteratees) { + iteratees = arrayMap(iteratees, baseUnary(getIteratee())); + return baseRest(function(args) { + var thisArg = this; + return arrayFunc(iteratees, function(iteratee) { + return apply(iteratee, thisArg, args); + }); + }); + }); + } + + /** + * Creates the padding for `string` based on `length`. The `chars` string + * is truncated if the number of characters exceeds `length`. + * + * @private + * @param {number} length The padding length. + * @param {string} [chars=' '] The string used as padding. + * @returns {string} Returns the padding for `string`. + */ + function createPadding(length, chars) { + chars = chars === undefined ? ' ' : baseToString(chars); + + var charsLength = chars.length; + if (charsLength < 2) { + return charsLength ? baseRepeat(chars, length) : chars; + } + var result = baseRepeat(chars, nativeCeil(length / stringSize(chars))); + return hasUnicode(chars) + ? castSlice(stringToArray(result), 0, length).join('') + : result.slice(0, length); + } + + /** + * Creates a function that wraps `func` to invoke it with the `this` binding + * of `thisArg` and `partials` prepended to the arguments it receives. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} thisArg The `this` binding of `func`. + * @param {Array} partials The arguments to prepend to those provided to + * the new function. + * @returns {Function} Returns the new wrapped function. + */ + function createPartial(func, bitmask, thisArg, partials) { + var isBind = bitmask & WRAP_BIND_FLAG, + Ctor = createCtor(func); + + function wrapper() { + var argsIndex = -1, + argsLength = arguments.length, + leftIndex = -1, + leftLength = partials.length, + args = Array(leftLength + argsLength), + fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + + while (++leftIndex < leftLength) { + args[leftIndex] = partials[leftIndex]; + } + while (argsLength--) { + args[leftIndex++] = arguments[++argsIndex]; + } + return apply(fn, isBind ? thisArg : this, args); + } + return wrapper; + } + + /** + * Creates a `_.range` or `_.rangeRight` function. + * + * @private + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new range function. + */ + function createRange(fromRight) { + return function(start, end, step) { + if (step && typeof step != 'number' && isIterateeCall(start, end, step)) { + end = step = undefined; + } + // Ensure the sign of `-0` is preserved. + start = toFinite(start); + if (end === undefined) { + end = start; + start = 0; + } else { + end = toFinite(end); + } + step = step === undefined ? (start < end ? 1 : -1) : toFinite(step); + return baseRange(start, end, step, fromRight); + }; + } + + /** + * Creates a function that performs a relational operation on two values. + * + * @private + * @param {Function} operator The function to perform the operation. + * @returns {Function} Returns the new relational operation function. + */ + function createRelationalOperation(operator) { + return function(value, other) { + if (!(typeof value == 'string' && typeof other == 'string')) { + value = toNumber(value); + other = toNumber(other); + } + return operator(value, other); + }; + } + + /** + * Creates a function that wraps `func` to continue currying. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {Function} wrapFunc The function to create the `func` wrapper. + * @param {*} placeholder The placeholder value. + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to prepend to those provided to + * the new function. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) { + var isCurry = bitmask & WRAP_CURRY_FLAG, + newHolders = isCurry ? holders : undefined, + newHoldersRight = isCurry ? undefined : holders, + newPartials = isCurry ? partials : undefined, + newPartialsRight = isCurry ? undefined : partials; + + bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG); + bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG); + + if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) { + bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG); + } + var newData = [ + func, bitmask, thisArg, newPartials, newHolders, newPartialsRight, + newHoldersRight, argPos, ary, arity + ]; + + var result = wrapFunc.apply(undefined, newData); + if (isLaziable(func)) { + setData(result, newData); + } + result.placeholder = placeholder; + return setWrapToString(result, func, bitmask); + } + + /** + * Creates a function like `_.round`. + * + * @private + * @param {string} methodName The name of the `Math` method to use when rounding. + * @returns {Function} Returns the new round function. + */ + function createRound(methodName) { + var func = Math[methodName]; + return function(number, precision) { + number = toNumber(number); + precision = precision == null ? 0 : nativeMin(toInteger(precision), 292); + if (precision && nativeIsFinite(number)) { + // Shift with exponential notation to avoid floating-point issues. + // See [MDN](https://mdn.io/round#Examples) for more details. + var pair = (toString(number) + 'e').split('e'), + value = func(pair[0] + 'e' + (+pair[1] + precision)); + + pair = (toString(value) + 'e').split('e'); + return +(pair[0] + 'e' + (+pair[1] - precision)); + } + return func(number); + }; + } + + /** + * Creates a set object of `values`. + * + * @private + * @param {Array} values The values to add to the set. + * @returns {Object} Returns the new set. + */ + var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) { + return new Set(values); + }; + + /** + * Creates a `_.toPairs` or `_.toPairsIn` function. + * + * @private + * @param {Function} keysFunc The function to get the keys of a given object. + * @returns {Function} Returns the new pairs function. + */ + function createToPairs(keysFunc) { + return function(object) { + var tag = getTag(object); + if (tag == mapTag) { + return mapToArray(object); + } + if (tag == setTag) { + return setToPairs(object); + } + return baseToPairs(object, keysFunc(object)); + }; + } + + /** + * Creates a function that either curries or invokes `func` with optional + * `this` binding and partially applied arguments. + * + * @private + * @param {Function|string} func The function or method name to wrap. + * @param {number} bitmask The bitmask flags. + * 1 - `_.bind` + * 2 - `_.bindKey` + * 4 - `_.curry` or `_.curryRight` of a bound function + * 8 - `_.curry` + * 16 - `_.curryRight` + * 32 - `_.partial` + * 64 - `_.partialRight` + * 128 - `_.rearg` + * 256 - `_.ary` + * 512 - `_.flip` + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to be partially applied. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) { + var isBindKey = bitmask & WRAP_BIND_KEY_FLAG; + if (!isBindKey && typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + var length = partials ? partials.length : 0; + if (!length) { + bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG); + partials = holders = undefined; + } + ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0); + arity = arity === undefined ? arity : toInteger(arity); + length -= holders ? holders.length : 0; + + if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) { + var partialsRight = partials, + holdersRight = holders; + + partials = holders = undefined; + } + var data = isBindKey ? undefined : getData(func); + + var newData = [ + func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, + argPos, ary, arity + ]; + + if (data) { + mergeData(newData, data); + } + func = newData[0]; + bitmask = newData[1]; + thisArg = newData[2]; + partials = newData[3]; + holders = newData[4]; + arity = newData[9] = newData[9] === undefined + ? (isBindKey ? 0 : func.length) + : nativeMax(newData[9] - length, 0); + + if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) { + bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG); + } + if (!bitmask || bitmask == WRAP_BIND_FLAG) { + var result = createBind(func, bitmask, thisArg); + } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) { + result = createCurry(func, bitmask, arity); + } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) { + result = createPartial(func, bitmask, thisArg, partials); + } else { + result = createHybrid.apply(undefined, newData); + } + var setter = data ? baseSetData : setData; + return setWrapToString(setter(result, newData), func, bitmask); + } + + /** + * Used by `_.defaults` to customize its `_.assignIn` use to assign properties + * of source objects to the destination object for all destination properties + * that resolve to `undefined`. + * + * @private + * @param {*} objValue The destination value. + * @param {*} srcValue The source value. + * @param {string} key The key of the property to assign. + * @param {Object} object The parent object of `objValue`. + * @returns {*} Returns the value to assign. + */ + function customDefaultsAssignIn(objValue, srcValue, key, object) { + if (objValue === undefined || + (eq(objValue, objectProto[key]) && !hasOwnProperty.call(object, key))) { + return srcValue; + } + return objValue; + } + + /** + * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source + * objects into destination objects that are passed thru. + * + * @private + * @param {*} objValue The destination value. + * @param {*} srcValue The source value. + * @param {string} key The key of the property to merge. + * @param {Object} object The parent object of `objValue`. + * @param {Object} source The parent object of `srcValue`. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + * @returns {*} Returns the value to assign. + */ + function customDefaultsMerge(objValue, srcValue, key, object, source, stack) { + if (isObject(objValue) && isObject(srcValue)) { + // Recursively merge objects and arrays (susceptible to call stack limits). + stack.set(srcValue, objValue); + baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack); + stack['delete'](srcValue); + } + return objValue; + } + + /** + * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain + * objects. + * + * @private + * @param {*} value The value to inspect. + * @param {string} key The key of the property to inspect. + * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`. + */ + function customOmitClone(value) { + return isPlainObject(value) ? undefined : value; + } + + /** + * A specialized version of `baseIsEqualDeep` for arrays with support for + * partial deep comparisons. + * + * @private + * @param {Array} array The array to compare. + * @param {Array} other The other array to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `array` and `other` objects. + * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`. + */ + function equalArrays(array, other, bitmask, customizer, equalFunc, stack) { + var isPartial = bitmask & COMPARE_PARTIAL_FLAG, + arrLength = array.length, + othLength = other.length; + + if (arrLength != othLength && !(isPartial && othLength > arrLength)) { + return false; + } + // Check that cyclic values are equal. + var arrStacked = stack.get(array); + var othStacked = stack.get(other); + if (arrStacked && othStacked) { + return arrStacked == other && othStacked == array; + } + var index = -1, + result = true, + seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined; + + stack.set(array, other); + stack.set(other, array); + + // Ignore non-index properties. + while (++index < arrLength) { + var arrValue = array[index], + othValue = other[index]; + + if (customizer) { + var compared = isPartial + ? customizer(othValue, arrValue, index, other, array, stack) + : customizer(arrValue, othValue, index, array, other, stack); + } + if (compared !== undefined) { + if (compared) { + continue; + } + result = false; + break; + } + // Recursively compare arrays (susceptible to call stack limits). + if (seen) { + if (!arraySome(other, function(othValue, othIndex) { + if (!cacheHas(seen, othIndex) && + (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) { + return seen.push(othIndex); + } + })) { + result = false; + break; + } + } else if (!( + arrValue === othValue || + equalFunc(arrValue, othValue, bitmask, customizer, stack) + )) { + result = false; + break; + } + } + stack['delete'](array); + stack['delete'](other); + return result; + } + + /** + * A specialized version of `baseIsEqualDeep` for comparing objects of + * the same `toStringTag`. + * + * **Note:** This function only supports comparing values with tags of + * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {string} tag The `toStringTag` of the objects to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) { + switch (tag) { + case dataViewTag: + if ((object.byteLength != other.byteLength) || + (object.byteOffset != other.byteOffset)) { + return false; + } + object = object.buffer; + other = other.buffer; + + case arrayBufferTag: + if ((object.byteLength != other.byteLength) || + !equalFunc(new Uint8Array(object), new Uint8Array(other))) { + return false; + } + return true; + + case boolTag: + case dateTag: + case numberTag: + // Coerce booleans to `1` or `0` and dates to milliseconds. + // Invalid dates are coerced to `NaN`. + return eq(+object, +other); + + case errorTag: + return object.name == other.name && object.message == other.message; + + case regexpTag: + case stringTag: + // Coerce regexes to strings and treat strings, primitives and objects, + // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring + // for more details. + return object == (other + ''); + + case mapTag: + var convert = mapToArray; + + case setTag: + var isPartial = bitmask & COMPARE_PARTIAL_FLAG; + convert || (convert = setToArray); + + if (object.size != other.size && !isPartial) { + return false; + } + // Assume cyclic values are equal. + var stacked = stack.get(object); + if (stacked) { + return stacked == other; + } + bitmask |= COMPARE_UNORDERED_FLAG; + + // Recursively compare objects (susceptible to call stack limits). + stack.set(object, other); + var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack); + stack['delete'](object); + return result; + + case symbolTag: + if (symbolValueOf) { + return symbolValueOf.call(object) == symbolValueOf.call(other); + } + } + return false; + } + + /** + * A specialized version of `baseIsEqualDeep` for objects with support for + * partial deep comparisons. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function equalObjects(object, other, bitmask, customizer, equalFunc, stack) { + var isPartial = bitmask & COMPARE_PARTIAL_FLAG, + objProps = getAllKeys(object), + objLength = objProps.length, + othProps = getAllKeys(other), + othLength = othProps.length; + + if (objLength != othLength && !isPartial) { + return false; + } + var index = objLength; + while (index--) { + var key = objProps[index]; + if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) { + return false; + } + } + // Check that cyclic values are equal. + var objStacked = stack.get(object); + var othStacked = stack.get(other); + if (objStacked && othStacked) { + return objStacked == other && othStacked == object; + } + var result = true; + stack.set(object, other); + stack.set(other, object); + + var skipCtor = isPartial; + while (++index < objLength) { + key = objProps[index]; + var objValue = object[key], + othValue = other[key]; + + if (customizer) { + var compared = isPartial + ? customizer(othValue, objValue, key, other, object, stack) + : customizer(objValue, othValue, key, object, other, stack); + } + // Recursively compare objects (susceptible to call stack limits). + if (!(compared === undefined + ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack)) + : compared + )) { + result = false; + break; + } + skipCtor || (skipCtor = key == 'constructor'); + } + if (result && !skipCtor) { + var objCtor = object.constructor, + othCtor = other.constructor; + + // Non `Object` object instances with different constructors are not equal. + if (objCtor != othCtor && + ('constructor' in object && 'constructor' in other) && + !(typeof objCtor == 'function' && objCtor instanceof objCtor && + typeof othCtor == 'function' && othCtor instanceof othCtor)) { + result = false; + } + } + stack['delete'](object); + stack['delete'](other); + return result; + } + + /** + * A specialized version of `baseRest` which flattens the rest array. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @returns {Function} Returns the new function. + */ + function flatRest(func) { + return setToString(overRest(func, undefined, flatten), func + ''); + } + + /** + * Creates an array of own enumerable property names and symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names and symbols. + */ + function getAllKeys(object) { + return baseGetAllKeys(object, keys, getSymbols); + } + + /** + * Creates an array of own and inherited enumerable property names and + * symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names and symbols. + */ + function getAllKeysIn(object) { + return baseGetAllKeys(object, keysIn, getSymbolsIn); + } + + /** + * Gets metadata for `func`. + * + * @private + * @param {Function} func The function to query. + * @returns {*} Returns the metadata for `func`. + */ + var getData = !metaMap ? noop : function(func) { + return metaMap.get(func); + }; + + /** + * Gets the name of `func`. + * + * @private + * @param {Function} func The function to query. + * @returns {string} Returns the function name. + */ + function getFuncName(func) { + var result = (func.name + ''), + array = realNames[result], + length = hasOwnProperty.call(realNames, result) ? array.length : 0; + + while (length--) { + var data = array[length], + otherFunc = data.func; + if (otherFunc == null || otherFunc == func) { + return data.name; + } + } + return result; + } + + /** + * Gets the argument placeholder value for `func`. + * + * @private + * @param {Function} func The function to inspect. + * @returns {*} Returns the placeholder value. + */ + function getHolder(func) { + var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func; + return object.placeholder; + } + + /** + * Gets the appropriate "iteratee" function. If `_.iteratee` is customized, + * this function returns the custom method, otherwise it returns `baseIteratee`. + * If arguments are provided, the chosen function is invoked with them and + * its result is returned. + * + * @private + * @param {*} [value] The value to convert to an iteratee. + * @param {number} [arity] The arity of the created iteratee. + * @returns {Function} Returns the chosen function or its result. + */ + function getIteratee() { + var result = lodash.iteratee || iteratee; + result = result === iteratee ? baseIteratee : result; + return arguments.length ? result(arguments[0], arguments[1]) : result; + } + + /** + * Gets the data for `map`. + * + * @private + * @param {Object} map The map to query. + * @param {string} key The reference key. + * @returns {*} Returns the map data. + */ + function getMapData(map, key) { + var data = map.__data__; + return isKeyable(key) + ? data[typeof key == 'string' ? 'string' : 'hash'] + : data.map; + } + + /** + * Gets the property names, values, and compare flags of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the match data of `object`. + */ + function getMatchData(object) { + var result = keys(object), + length = result.length; + + while (length--) { + var key = result[length], + value = object[key]; + + result[length] = [key, value, isStrictComparable(value)]; + } + return result; + } + + /** + * Gets the native function at `key` of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {string} key The key of the method to get. + * @returns {*} Returns the function if it's native, else `undefined`. + */ + function getNative(object, key) { + var value = getValue(object, key); + return baseIsNative(value) ? value : undefined; + } + + /** + * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the raw `toStringTag`. + */ + function getRawTag(value) { + var isOwn = hasOwnProperty.call(value, symToStringTag), + tag = value[symToStringTag]; + + try { + value[symToStringTag] = undefined; + var unmasked = true; + } catch (e) {} + + var result = nativeObjectToString.call(value); + if (unmasked) { + if (isOwn) { + value[symToStringTag] = tag; + } else { + delete value[symToStringTag]; + } + } + return result; + } + + /** + * Creates an array of the own enumerable symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of symbols. + */ + var getSymbols = !nativeGetSymbols ? stubArray : function(object) { + if (object == null) { + return []; + } + object = Object(object); + return arrayFilter(nativeGetSymbols(object), function(symbol) { + return propertyIsEnumerable.call(object, symbol); + }); + }; + + /** + * Creates an array of the own and inherited enumerable symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of symbols. + */ + var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) { + var result = []; + while (object) { + arrayPush(result, getSymbols(object)); + object = getPrototype(object); + } + return result; + }; + + /** + * Gets the `toStringTag` of `value`. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the `toStringTag`. + */ + var getTag = baseGetTag; + + // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6. + if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) || + (Map && getTag(new Map) != mapTag) || + (Promise && getTag(Promise.resolve()) != promiseTag) || + (Set && getTag(new Set) != setTag) || + (WeakMap && getTag(new WeakMap) != weakMapTag)) { + getTag = function(value) { + var result = baseGetTag(value), + Ctor = result == objectTag ? value.constructor : undefined, + ctorString = Ctor ? toSource(Ctor) : ''; + + if (ctorString) { + switch (ctorString) { + case dataViewCtorString: return dataViewTag; + case mapCtorString: return mapTag; + case promiseCtorString: return promiseTag; + case setCtorString: return setTag; + case weakMapCtorString: return weakMapTag; + } + } + return result; + }; + } + + /** + * Gets the view, applying any `transforms` to the `start` and `end` positions. + * + * @private + * @param {number} start The start of the view. + * @param {number} end The end of the view. + * @param {Array} transforms The transformations to apply to the view. + * @returns {Object} Returns an object containing the `start` and `end` + * positions of the view. + */ + function getView(start, end, transforms) { + var index = -1, + length = transforms.length; + + while (++index < length) { + var data = transforms[index], + size = data.size; + + switch (data.type) { + case 'drop': start += size; break; + case 'dropRight': end -= size; break; + case 'take': end = nativeMin(end, start + size); break; + case 'takeRight': start = nativeMax(start, end - size); break; + } + } + return { 'start': start, 'end': end }; + } + + /** + * Extracts wrapper details from the `source` body comment. + * + * @private + * @param {string} source The source to inspect. + * @returns {Array} Returns the wrapper details. + */ + function getWrapDetails(source) { + var match = source.match(reWrapDetails); + return match ? match[1].split(reSplitDetails) : []; + } + + /** + * Checks if `path` exists on `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @param {Function} hasFunc The function to check properties. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + */ + function hasPath(object, path, hasFunc) { + path = castPath(path, object); + + var index = -1, + length = path.length, + result = false; + + while (++index < length) { + var key = toKey(path[index]); + if (!(result = object != null && hasFunc(object, key))) { + break; + } + object = object[key]; + } + if (result || ++index != length) { + return result; + } + length = object == null ? 0 : object.length; + return !!length && isLength(length) && isIndex(key, length) && + (isArray(object) || isArguments(object)); + } + + /** + * Initializes an array clone. + * + * @private + * @param {Array} array The array to clone. + * @returns {Array} Returns the initialized clone. + */ + function initCloneArray(array) { + var length = array.length, + result = new array.constructor(length); + + // Add properties assigned by `RegExp#exec`. + if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) { + result.index = array.index; + result.input = array.input; + } + return result; + } + + /** + * Initializes an object clone. + * + * @private + * @param {Object} object The object to clone. + * @returns {Object} Returns the initialized clone. + */ + function initCloneObject(object) { + return (typeof object.constructor == 'function' && !isPrototype(object)) + ? baseCreate(getPrototype(object)) + : {}; + } + + /** + * Initializes an object clone based on its `toStringTag`. + * + * **Note:** This function only supports cloning values with tags of + * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`. + * + * @private + * @param {Object} object The object to clone. + * @param {string} tag The `toStringTag` of the object to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the initialized clone. + */ + function initCloneByTag(object, tag, isDeep) { + var Ctor = object.constructor; + switch (tag) { + case arrayBufferTag: + return cloneArrayBuffer(object); + + case boolTag: + case dateTag: + return new Ctor(+object); + + case dataViewTag: + return cloneDataView(object, isDeep); + + case float32Tag: case float64Tag: + case int8Tag: case int16Tag: case int32Tag: + case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag: + return cloneTypedArray(object, isDeep); + + case mapTag: + return new Ctor; + + case numberTag: + case stringTag: + return new Ctor(object); + + case regexpTag: + return cloneRegExp(object); + + case setTag: + return new Ctor; + + case symbolTag: + return cloneSymbol(object); + } + } + + /** + * Inserts wrapper `details` in a comment at the top of the `source` body. + * + * @private + * @param {string} source The source to modify. + * @returns {Array} details The details to insert. + * @returns {string} Returns the modified source. + */ + function insertWrapDetails(source, details) { + var length = details.length; + if (!length) { + return source; + } + var lastIndex = length - 1; + details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex]; + details = details.join(length > 2 ? ', ' : ' '); + return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n'); + } + + /** + * Checks if `value` is a flattenable `arguments` object or array. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is flattenable, else `false`. + */ + function isFlattenable(value) { + return isArray(value) || isArguments(value) || + !!(spreadableSymbol && value && value[spreadableSymbol]); + } + + /** + * Checks if `value` is a valid array-like index. + * + * @private + * @param {*} value The value to check. + * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. + * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. + */ + function isIndex(value, length) { + var type = typeof value; + length = length == null ? MAX_SAFE_INTEGER : length; + + return !!length && + (type == 'number' || + (type != 'symbol' && reIsUint.test(value))) && + (value > -1 && value % 1 == 0 && value < length); + } + + /** + * Checks if the given arguments are from an iteratee call. + * + * @private + * @param {*} value The potential iteratee value argument. + * @param {*} index The potential iteratee index or key argument. + * @param {*} object The potential iteratee object argument. + * @returns {boolean} Returns `true` if the arguments are from an iteratee call, + * else `false`. + */ + function isIterateeCall(value, index, object) { + if (!isObject(object)) { + return false; + } + var type = typeof index; + if (type == 'number' + ? (isArrayLike(object) && isIndex(index, object.length)) + : (type == 'string' && index in object) + ) { + return eq(object[index], value); + } + return false; + } + + /** + * Checks if `value` is a property name and not a property path. + * + * @private + * @param {*} value The value to check. + * @param {Object} [object] The object to query keys on. + * @returns {boolean} Returns `true` if `value` is a property name, else `false`. + */ + function isKey(value, object) { + if (isArray(value)) { + return false; + } + var type = typeof value; + if (type == 'number' || type == 'symbol' || type == 'boolean' || + value == null || isSymbol(value)) { + return true; + } + return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || + (object != null && value in Object(object)); + } + + /** + * Checks if `value` is suitable for use as unique object key. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is suitable, else `false`. + */ + function isKeyable(value) { + var type = typeof value; + return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean') + ? (value !== '__proto__') + : (value === null); + } + + /** + * Checks if `func` has a lazy counterpart. + * + * @private + * @param {Function} func The function to check. + * @returns {boolean} Returns `true` if `func` has a lazy counterpart, + * else `false`. + */ + function isLaziable(func) { + var funcName = getFuncName(func), + other = lodash[funcName]; + + if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) { + return false; + } + if (func === other) { + return true; + } + var data = getData(other); + return !!data && func === data[0]; + } + + /** + * Checks if `func` has its source masked. + * + * @private + * @param {Function} func The function to check. + * @returns {boolean} Returns `true` if `func` is masked, else `false`. + */ + function isMasked(func) { + return !!maskSrcKey && (maskSrcKey in func); + } + + /** + * Checks if `func` is capable of being masked. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `func` is maskable, else `false`. + */ + var isMaskable = coreJsData ? isFunction : stubFalse; + + /** + * Checks if `value` is likely a prototype object. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a prototype, else `false`. + */ + function isPrototype(value) { + var Ctor = value && value.constructor, + proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto; + + return value === proto; + } + + /** + * Checks if `value` is suitable for strict equality comparisons, i.e. `===`. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` if suitable for strict + * equality comparisons, else `false`. + */ + function isStrictComparable(value) { + return value === value && !isObject(value); + } + + /** + * A specialized version of `matchesProperty` for source values suitable + * for strict equality comparisons, i.e. `===`. + * + * @private + * @param {string} key The key of the property to get. + * @param {*} srcValue The value to match. + * @returns {Function} Returns the new spec function. + */ + function matchesStrictComparable(key, srcValue) { + return function(object) { + if (object == null) { + return false; + } + return object[key] === srcValue && + (srcValue !== undefined || (key in Object(object))); + }; + } + + /** + * A specialized version of `_.memoize` which clears the memoized function's + * cache when it exceeds `MAX_MEMOIZE_SIZE`. + * + * @private + * @param {Function} func The function to have its output memoized. + * @returns {Function} Returns the new memoized function. + */ + function memoizeCapped(func) { + var result = memoize(func, function(key) { + if (cache.size === MAX_MEMOIZE_SIZE) { + cache.clear(); + } + return key; + }); + + var cache = result.cache; + return result; + } + + /** + * Merges the function metadata of `source` into `data`. + * + * Merging metadata reduces the number of wrappers used to invoke a function. + * This is possible because methods like `_.bind`, `_.curry`, and `_.partial` + * may be applied regardless of execution order. Methods like `_.ary` and + * `_.rearg` modify function arguments, making the order in which they are + * executed important, preventing the merging of metadata. However, we make + * an exception for a safe combined case where curried functions have `_.ary` + * and or `_.rearg` applied. + * + * @private + * @param {Array} data The destination metadata. + * @param {Array} source The source metadata. + * @returns {Array} Returns `data`. + */ + function mergeData(data, source) { + var bitmask = data[1], + srcBitmask = source[1], + newBitmask = bitmask | srcBitmask, + isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG); + + var isCombo = + ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) || + ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) || + ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG)); + + // Exit early if metadata can't be merged. + if (!(isCommon || isCombo)) { + return data; + } + // Use source `thisArg` if available. + if (srcBitmask & WRAP_BIND_FLAG) { + data[2] = source[2]; + // Set when currying a bound function. + newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG; + } + // Compose partial arguments. + var value = source[3]; + if (value) { + var partials = data[3]; + data[3] = partials ? composeArgs(partials, value, source[4]) : value; + data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4]; + } + // Compose partial right arguments. + value = source[5]; + if (value) { + partials = data[5]; + data[5] = partials ? composeArgsRight(partials, value, source[6]) : value; + data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6]; + } + // Use source `argPos` if available. + value = source[7]; + if (value) { + data[7] = value; + } + // Use source `ary` if it's smaller. + if (srcBitmask & WRAP_ARY_FLAG) { + data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]); + } + // Use source `arity` if one is not provided. + if (data[9] == null) { + data[9] = source[9]; + } + // Use source `func` and merge bitmasks. + data[0] = source[0]; + data[1] = newBitmask; + + return data; + } + + /** + * This function is like + * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) + * except that it includes inherited enumerable properties. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function nativeKeysIn(object) { + var result = []; + if (object != null) { + for (var key in Object(object)) { + result.push(key); + } + } + return result; + } + + /** + * Converts `value` to a string using `Object.prototype.toString`. + * + * @private + * @param {*} value The value to convert. + * @returns {string} Returns the converted string. + */ + function objectToString(value) { + return nativeObjectToString.call(value); + } + + /** + * A specialized version of `baseRest` which transforms the rest array. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @param {Function} transform The rest array transform. + * @returns {Function} Returns the new function. + */ + function overRest(func, start, transform) { + start = nativeMax(start === undefined ? (func.length - 1) : start, 0); + return function() { + var args = arguments, + index = -1, + length = nativeMax(args.length - start, 0), + array = Array(length); + + while (++index < length) { + array[index] = args[start + index]; + } + index = -1; + var otherArgs = Array(start + 1); + while (++index < start) { + otherArgs[index] = args[index]; + } + otherArgs[start] = transform(array); + return apply(func, this, otherArgs); + }; + } + + /** + * Gets the parent value at `path` of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Array} path The path to get the parent value of. + * @returns {*} Returns the parent value. + */ + function parent(object, path) { + return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1)); + } + + /** + * Reorder `array` according to the specified indexes where the element at + * the first index is assigned as the first element, the element at + * the second index is assigned as the second element, and so on. + * + * @private + * @param {Array} array The array to reorder. + * @param {Array} indexes The arranged array indexes. + * @returns {Array} Returns `array`. + */ + function reorder(array, indexes) { + var arrLength = array.length, + length = nativeMin(indexes.length, arrLength), + oldArray = copyArray(array); + + while (length--) { + var index = indexes[length]; + array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined; + } + return array; + } + + /** + * Gets the value at `key`, unless `key` is "__proto__" or "constructor". + * + * @private + * @param {Object} object The object to query. + * @param {string} key The key of the property to get. + * @returns {*} Returns the property value. + */ + function safeGet(object, key) { + if (key === 'constructor' && typeof object[key] === 'function') { + return; + } + + if (key == '__proto__') { + return; + } + + return object[key]; + } + + /** + * Sets metadata for `func`. + * + * **Note:** If this function becomes hot, i.e. is invoked a lot in a short + * period of time, it will trip its breaker and transition to an identity + * function to avoid garbage collection pauses in V8. See + * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070) + * for more details. + * + * @private + * @param {Function} func The function to associate metadata with. + * @param {*} data The metadata. + * @returns {Function} Returns `func`. + */ + var setData = shortOut(baseSetData); + + /** + * A simple wrapper around the global [`setTimeout`](https://mdn.io/setTimeout). + * + * @private + * @param {Function} func The function to delay. + * @param {number} wait The number of milliseconds to delay invocation. + * @returns {number|Object} Returns the timer id or timeout object. + */ + var setTimeout = ctxSetTimeout || function(func, wait) { + return root.setTimeout(func, wait); + }; + + /** + * Sets the `toString` method of `func` to return `string`. + * + * @private + * @param {Function} func The function to modify. + * @param {Function} string The `toString` result. + * @returns {Function} Returns `func`. + */ + var setToString = shortOut(baseSetToString); + + /** + * Sets the `toString` method of `wrapper` to mimic the source of `reference` + * with wrapper details in a comment at the top of the source body. + * + * @private + * @param {Function} wrapper The function to modify. + * @param {Function} reference The reference function. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @returns {Function} Returns `wrapper`. + */ + function setWrapToString(wrapper, reference, bitmask) { + var source = (reference + ''); + return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask))); + } + + /** + * Creates a function that'll short out and invoke `identity` instead + * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN` + * milliseconds. + * + * @private + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new shortable function. + */ + function shortOut(func) { + var count = 0, + lastCalled = 0; + + return function() { + var stamp = nativeNow(), + remaining = HOT_SPAN - (stamp - lastCalled); + + lastCalled = stamp; + if (remaining > 0) { + if (++count >= HOT_COUNT) { + return arguments[0]; + } + } else { + count = 0; + } + return func.apply(undefined, arguments); + }; + } + + /** + * A specialized version of `_.shuffle` which mutates and sets the size of `array`. + * + * @private + * @param {Array} array The array to shuffle. + * @param {number} [size=array.length] The size of `array`. + * @returns {Array} Returns `array`. + */ + function shuffleSelf(array, size) { + var index = -1, + length = array.length, + lastIndex = length - 1; + + size = size === undefined ? length : size; + while (++index < size) { + var rand = baseRandom(index, lastIndex), + value = array[rand]; + + array[rand] = array[index]; + array[index] = value; + } + array.length = size; + return array; + } + + /** + * Converts `string` to a property path array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the property path array. + */ + var stringToPath = memoizeCapped(function(string) { + var result = []; + if (string.charCodeAt(0) === 46 /* . */) { + result.push(''); + } + string.replace(rePropName, function(match, number, quote, subString) { + result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match)); + }); + return result; + }); + + /** + * Converts `value` to a string key if it's not a string or symbol. + * + * @private + * @param {*} value The value to inspect. + * @returns {string|symbol} Returns the key. + */ + function toKey(value) { + if (typeof value == 'string' || isSymbol(value)) { + return value; + } + var result = (value + ''); + return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; + } + + /** + * Converts `func` to its source code. + * + * @private + * @param {Function} func The function to convert. + * @returns {string} Returns the source code. + */ + function toSource(func) { + if (func != null) { + try { + return funcToString.call(func); + } catch (e) {} + try { + return (func + ''); + } catch (e) {} + } + return ''; + } + + /** + * Updates wrapper `details` based on `bitmask` flags. + * + * @private + * @returns {Array} details The details to modify. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @returns {Array} Returns `details`. + */ + function updateWrapDetails(details, bitmask) { + arrayEach(wrapFlags, function(pair) { + var value = '_.' + pair[0]; + if ((bitmask & pair[1]) && !arrayIncludes(details, value)) { + details.push(value); + } + }); + return details.sort(); + } + + /** + * Creates a clone of `wrapper`. + * + * @private + * @param {Object} wrapper The wrapper to clone. + * @returns {Object} Returns the cloned wrapper. + */ + function wrapperClone(wrapper) { + if (wrapper instanceof LazyWrapper) { + return wrapper.clone(); + } + var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__); + result.__actions__ = copyArray(wrapper.__actions__); + result.__index__ = wrapper.__index__; + result.__values__ = wrapper.__values__; + return result; + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates an array of elements split into groups the length of `size`. + * If `array` can't be split evenly, the final chunk will be the remaining + * elements. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to process. + * @param {number} [size=1] The length of each chunk + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the new array of chunks. + * @example + * + * _.chunk(['a', 'b', 'c', 'd'], 2); + * // => [['a', 'b'], ['c', 'd']] + * + * _.chunk(['a', 'b', 'c', 'd'], 3); + * // => [['a', 'b', 'c'], ['d']] + */ + function chunk(array, size, guard) { + if ((guard ? isIterateeCall(array, size, guard) : size === undefined)) { + size = 1; + } else { + size = nativeMax(toInteger(size), 0); + } + var length = array == null ? 0 : array.length; + if (!length || size < 1) { + return []; + } + var index = 0, + resIndex = 0, + result = Array(nativeCeil(length / size)); + + while (index < length) { + result[resIndex++] = baseSlice(array, index, (index += size)); + } + return result; + } + + /** + * Creates an array with all falsey values removed. The values `false`, `null`, + * `0`, `""`, `undefined`, and `NaN` are falsey. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to compact. + * @returns {Array} Returns the new array of filtered values. + * @example + * + * _.compact([0, 1, false, 2, '', 3]); + * // => [1, 2, 3] + */ + function compact(array) { + var index = -1, + length = array == null ? 0 : array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (value) { + result[resIndex++] = value; + } + } + return result; + } + + /** + * Creates a new array concatenating `array` with any additional arrays + * and/or values. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to concatenate. + * @param {...*} [values] The values to concatenate. + * @returns {Array} Returns the new concatenated array. + * @example + * + * var array = [1]; + * var other = _.concat(array, 2, [3], [[4]]); + * + * console.log(other); + * // => [1, 2, 3, [4]] + * + * console.log(array); + * // => [1] + */ + function concat() { + var length = arguments.length; + if (!length) { + return []; + } + var args = Array(length - 1), + array = arguments[0], + index = length; + + while (index--) { + args[index - 1] = arguments[index]; + } + return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1)); + } + + /** + * Creates an array of `array` values not included in the other given arrays + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. The order and references of result values are + * determined by the first array. + * + * **Note:** Unlike `_.pullAll`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {...Array} [values] The values to exclude. + * @returns {Array} Returns the new array of filtered values. + * @see _.without, _.xor + * @example + * + * _.difference([2, 1], [2, 3]); + * // => [1] + */ + var difference = baseRest(function(array, values) { + return isArrayLikeObject(array) + ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true)) + : []; + }); + + /** + * This method is like `_.difference` except that it accepts `iteratee` which + * is invoked for each element of `array` and `values` to generate the criterion + * by which they're compared. The order and references of result values are + * determined by the first array. The iteratee is invoked with one argument: + * (value). + * + * **Note:** Unlike `_.pullAllBy`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {...Array} [values] The values to exclude. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Array} Returns the new array of filtered values. + * @example + * + * _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor); + * // => [1.2] + * + * // The `_.property` iteratee shorthand. + * _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x'); + * // => [{ 'x': 2 }] + */ + var differenceBy = baseRest(function(array, values) { + var iteratee = last(values); + if (isArrayLikeObject(iteratee)) { + iteratee = undefined; + } + return isArrayLikeObject(array) + ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), getIteratee(iteratee, 2)) + : []; + }); + + /** + * This method is like `_.difference` except that it accepts `comparator` + * which is invoked to compare elements of `array` to `values`. The order and + * references of result values are determined by the first array. The comparator + * is invoked with two arguments: (arrVal, othVal). + * + * **Note:** Unlike `_.pullAllWith`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {...Array} [values] The values to exclude. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of filtered values. + * @example + * + * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; + * + * _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual); + * // => [{ 'x': 2, 'y': 1 }] + */ + var differenceWith = baseRest(function(array, values) { + var comparator = last(values); + if (isArrayLikeObject(comparator)) { + comparator = undefined; + } + return isArrayLikeObject(array) + ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), undefined, comparator) + : []; + }); + + /** + * Creates a slice of `array` with `n` elements dropped from the beginning. + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to drop. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.drop([1, 2, 3]); + * // => [2, 3] + * + * _.drop([1, 2, 3], 2); + * // => [3] + * + * _.drop([1, 2, 3], 5); + * // => [] + * + * _.drop([1, 2, 3], 0); + * // => [1, 2, 3] + */ + function drop(array, n, guard) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + return baseSlice(array, n < 0 ? 0 : n, length); + } + + /** + * Creates a slice of `array` with `n` elements dropped from the end. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to drop. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.dropRight([1, 2, 3]); + * // => [1, 2] + * + * _.dropRight([1, 2, 3], 2); + * // => [1] + * + * _.dropRight([1, 2, 3], 5); + * // => [] + * + * _.dropRight([1, 2, 3], 0); + * // => [1, 2, 3] + */ + function dropRight(array, n, guard) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + n = length - n; + return baseSlice(array, 0, n < 0 ? 0 : n); + } + + /** + * Creates a slice of `array` excluding elements dropped from the end. + * Elements are dropped until `predicate` returns falsey. The predicate is + * invoked with three arguments: (value, index, array). + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to query. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the slice of `array`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': true }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': false } + * ]; + * + * _.dropRightWhile(users, function(o) { return !o.active; }); + * // => objects for ['barney'] + * + * // The `_.matches` iteratee shorthand. + * _.dropRightWhile(users, { 'user': 'pebbles', 'active': false }); + * // => objects for ['barney', 'fred'] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.dropRightWhile(users, ['active', false]); + * // => objects for ['barney'] + * + * // The `_.property` iteratee shorthand. + * _.dropRightWhile(users, 'active'); + * // => objects for ['barney', 'fred', 'pebbles'] + */ + function dropRightWhile(array, predicate) { + return (array && array.length) + ? baseWhile(array, getIteratee(predicate, 3), true, true) + : []; + } + + /** + * Creates a slice of `array` excluding elements dropped from the beginning. + * Elements are dropped until `predicate` returns falsey. The predicate is + * invoked with three arguments: (value, index, array). + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to query. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the slice of `array`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': false }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': true } + * ]; + * + * _.dropWhile(users, function(o) { return !o.active; }); + * // => objects for ['pebbles'] + * + * // The `_.matches` iteratee shorthand. + * _.dropWhile(users, { 'user': 'barney', 'active': false }); + * // => objects for ['fred', 'pebbles'] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.dropWhile(users, ['active', false]); + * // => objects for ['pebbles'] + * + * // The `_.property` iteratee shorthand. + * _.dropWhile(users, 'active'); + * // => objects for ['barney', 'fred', 'pebbles'] + */ + function dropWhile(array, predicate) { + return (array && array.length) + ? baseWhile(array, getIteratee(predicate, 3), true) + : []; + } + + /** + * Fills elements of `array` with `value` from `start` up to, but not + * including, `end`. + * + * **Note:** This method mutates `array`. + * + * @static + * @memberOf _ + * @since 3.2.0 + * @category Array + * @param {Array} array The array to fill. + * @param {*} value The value to fill `array` with. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns `array`. + * @example + * + * var array = [1, 2, 3]; + * + * _.fill(array, 'a'); + * console.log(array); + * // => ['a', 'a', 'a'] + * + * _.fill(Array(3), 2); + * // => [2, 2, 2] + * + * _.fill([4, 6, 8, 10], '*', 1, 3); + * // => [4, '*', '*', 10] + */ + function fill(array, value, start, end) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + if (start && typeof start != 'number' && isIterateeCall(array, value, start)) { + start = 0; + end = length; + } + return baseFill(array, value, start, end); + } + + /** + * This method is like `_.find` except that it returns the index of the first + * element `predicate` returns truthy for instead of the element itself. + * + * @static + * @memberOf _ + * @since 1.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=0] The index to search from. + * @returns {number} Returns the index of the found element, else `-1`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': false }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': true } + * ]; + * + * _.findIndex(users, function(o) { return o.user == 'barney'; }); + * // => 0 + * + * // The `_.matches` iteratee shorthand. + * _.findIndex(users, { 'user': 'fred', 'active': false }); + * // => 1 + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findIndex(users, ['active', false]); + * // => 0 + * + * // The `_.property` iteratee shorthand. + * _.findIndex(users, 'active'); + * // => 2 + */ + function findIndex(array, predicate, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = fromIndex == null ? 0 : toInteger(fromIndex); + if (index < 0) { + index = nativeMax(length + index, 0); + } + return baseFindIndex(array, getIteratee(predicate, 3), index); + } + + /** + * This method is like `_.findIndex` except that it iterates over elements + * of `collection` from right to left. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=array.length-1] The index to search from. + * @returns {number} Returns the index of the found element, else `-1`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': true }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': false } + * ]; + * + * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; }); + * // => 2 + * + * // The `_.matches` iteratee shorthand. + * _.findLastIndex(users, { 'user': 'barney', 'active': true }); + * // => 0 + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findLastIndex(users, ['active', false]); + * // => 2 + * + * // The `_.property` iteratee shorthand. + * _.findLastIndex(users, 'active'); + * // => 0 + */ + function findLastIndex(array, predicate, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = length - 1; + if (fromIndex !== undefined) { + index = toInteger(fromIndex); + index = fromIndex < 0 + ? nativeMax(length + index, 0) + : nativeMin(index, length - 1); + } + return baseFindIndex(array, getIteratee(predicate, 3), index, true); + } + + /** + * Flattens `array` a single level deep. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to flatten. + * @returns {Array} Returns the new flattened array. + * @example + * + * _.flatten([1, [2, [3, [4]], 5]]); + * // => [1, 2, [3, [4]], 5] + */ + function flatten(array) { + var length = array == null ? 0 : array.length; + return length ? baseFlatten(array, 1) : []; + } + + /** + * Recursively flattens `array`. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to flatten. + * @returns {Array} Returns the new flattened array. + * @example + * + * _.flattenDeep([1, [2, [3, [4]], 5]]); + * // => [1, 2, 3, 4, 5] + */ + function flattenDeep(array) { + var length = array == null ? 0 : array.length; + return length ? baseFlatten(array, INFINITY) : []; + } + + /** + * Recursively flatten `array` up to `depth` times. + * + * @static + * @memberOf _ + * @since 4.4.0 + * @category Array + * @param {Array} array The array to flatten. + * @param {number} [depth=1] The maximum recursion depth. + * @returns {Array} Returns the new flattened array. + * @example + * + * var array = [1, [2, [3, [4]], 5]]; + * + * _.flattenDepth(array, 1); + * // => [1, 2, [3, [4]], 5] + * + * _.flattenDepth(array, 2); + * // => [1, 2, 3, [4], 5] + */ + function flattenDepth(array, depth) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + depth = depth === undefined ? 1 : toInteger(depth); + return baseFlatten(array, depth); + } + + /** + * The inverse of `_.toPairs`; this method returns an object composed + * from key-value `pairs`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} pairs The key-value pairs. + * @returns {Object} Returns the new object. + * @example + * + * _.fromPairs([['a', 1], ['b', 2]]); + * // => { 'a': 1, 'b': 2 } + */ + function fromPairs(pairs) { + var index = -1, + length = pairs == null ? 0 : pairs.length, + result = {}; + + while (++index < length) { + var pair = pairs[index]; + result[pair[0]] = pair[1]; + } + return result; + } + + /** + * Gets the first element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @alias first + * @category Array + * @param {Array} array The array to query. + * @returns {*} Returns the first element of `array`. + * @example + * + * _.head([1, 2, 3]); + * // => 1 + * + * _.head([]); + * // => undefined + */ + function head(array) { + return (array && array.length) ? array[0] : undefined; + } + + /** + * Gets the index at which the first occurrence of `value` is found in `array` + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. If `fromIndex` is negative, it's used as the + * offset from the end of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} [fromIndex=0] The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + * @example + * + * _.indexOf([1, 2, 1, 2], 2); + * // => 1 + * + * // Search from the `fromIndex`. + * _.indexOf([1, 2, 1, 2], 2, 2); + * // => 3 + */ + function indexOf(array, value, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = fromIndex == null ? 0 : toInteger(fromIndex); + if (index < 0) { + index = nativeMax(length + index, 0); + } + return baseIndexOf(array, value, index); + } + + /** + * Gets all but the last element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.initial([1, 2, 3]); + * // => [1, 2] + */ + function initial(array) { + var length = array == null ? 0 : array.length; + return length ? baseSlice(array, 0, -1) : []; + } + + /** + * Creates an array of unique values that are included in all given arrays + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. The order and references of result values are + * determined by the first array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @returns {Array} Returns the new array of intersecting values. + * @example + * + * _.intersection([2, 1], [2, 3]); + * // => [2] + */ + var intersection = baseRest(function(arrays) { + var mapped = arrayMap(arrays, castArrayLikeObject); + return (mapped.length && mapped[0] === arrays[0]) + ? baseIntersection(mapped) + : []; + }); + + /** + * This method is like `_.intersection` except that it accepts `iteratee` + * which is invoked for each element of each `arrays` to generate the criterion + * by which they're compared. The order and references of result values are + * determined by the first array. The iteratee is invoked with one argument: + * (value). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Array} Returns the new array of intersecting values. + * @example + * + * _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor); + * // => [2.1] + * + * // The `_.property` iteratee shorthand. + * _.intersectionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x'); + * // => [{ 'x': 1 }] + */ + var intersectionBy = baseRest(function(arrays) { + var iteratee = last(arrays), + mapped = arrayMap(arrays, castArrayLikeObject); + + if (iteratee === last(mapped)) { + iteratee = undefined; + } else { + mapped.pop(); + } + return (mapped.length && mapped[0] === arrays[0]) + ? baseIntersection(mapped, getIteratee(iteratee, 2)) + : []; + }); + + /** + * This method is like `_.intersection` except that it accepts `comparator` + * which is invoked to compare elements of `arrays`. The order and references + * of result values are determined by the first array. The comparator is + * invoked with two arguments: (arrVal, othVal). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of intersecting values. + * @example + * + * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; + * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }]; + * + * _.intersectionWith(objects, others, _.isEqual); + * // => [{ 'x': 1, 'y': 2 }] + */ + var intersectionWith = baseRest(function(arrays) { + var comparator = last(arrays), + mapped = arrayMap(arrays, castArrayLikeObject); + + comparator = typeof comparator == 'function' ? comparator : undefined; + if (comparator) { + mapped.pop(); + } + return (mapped.length && mapped[0] === arrays[0]) + ? baseIntersection(mapped, undefined, comparator) + : []; + }); + + /** + * Converts all elements in `array` into a string separated by `separator`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to convert. + * @param {string} [separator=','] The element separator. + * @returns {string} Returns the joined string. + * @example + * + * _.join(['a', 'b', 'c'], '~'); + * // => 'a~b~c' + */ + function join(array, separator) { + return array == null ? '' : nativeJoin.call(array, separator); + } + + /** + * Gets the last element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @returns {*} Returns the last element of `array`. + * @example + * + * _.last([1, 2, 3]); + * // => 3 + */ + function last(array) { + var length = array == null ? 0 : array.length; + return length ? array[length - 1] : undefined; + } + + /** + * This method is like `_.indexOf` except that it iterates over elements of + * `array` from right to left. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} [fromIndex=array.length-1] The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + * @example + * + * _.lastIndexOf([1, 2, 1, 2], 2); + * // => 3 + * + * // Search from the `fromIndex`. + * _.lastIndexOf([1, 2, 1, 2], 2, 2); + * // => 1 + */ + function lastIndexOf(array, value, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = length; + if (fromIndex !== undefined) { + index = toInteger(fromIndex); + index = index < 0 ? nativeMax(length + index, 0) : nativeMin(index, length - 1); + } + return value === value + ? strictLastIndexOf(array, value, index) + : baseFindIndex(array, baseIsNaN, index, true); + } + + /** + * Gets the element at index `n` of `array`. If `n` is negative, the nth + * element from the end is returned. + * + * @static + * @memberOf _ + * @since 4.11.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=0] The index of the element to return. + * @returns {*} Returns the nth element of `array`. + * @example + * + * var array = ['a', 'b', 'c', 'd']; + * + * _.nth(array, 1); + * // => 'b' + * + * _.nth(array, -2); + * // => 'c'; + */ + function nth(array, n) { + return (array && array.length) ? baseNth(array, toInteger(n)) : undefined; + } + + /** + * Removes all given values from `array` using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove` + * to remove elements from an array by predicate. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Array + * @param {Array} array The array to modify. + * @param {...*} [values] The values to remove. + * @returns {Array} Returns `array`. + * @example + * + * var array = ['a', 'b', 'c', 'a', 'b', 'c']; + * + * _.pull(array, 'a', 'c'); + * console.log(array); + * // => ['b', 'b'] + */ + var pull = baseRest(pullAll); + + /** + * This method is like `_.pull` except that it accepts an array of values to remove. + * + * **Note:** Unlike `_.difference`, this method mutates `array`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to modify. + * @param {Array} values The values to remove. + * @returns {Array} Returns `array`. + * @example + * + * var array = ['a', 'b', 'c', 'a', 'b', 'c']; + * + * _.pullAll(array, ['a', 'c']); + * console.log(array); + * // => ['b', 'b'] + */ + function pullAll(array, values) { + return (array && array.length && values && values.length) + ? basePullAll(array, values) + : array; + } + + /** + * This method is like `_.pullAll` except that it accepts `iteratee` which is + * invoked for each element of `array` and `values` to generate the criterion + * by which they're compared. The iteratee is invoked with one argument: (value). + * + * **Note:** Unlike `_.differenceBy`, this method mutates `array`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to modify. + * @param {Array} values The values to remove. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Array} Returns `array`. + * @example + * + * var array = [{ 'x': 1 }, { 'x': 2 }, { 'x': 3 }, { 'x': 1 }]; + * + * _.pullAllBy(array, [{ 'x': 1 }, { 'x': 3 }], 'x'); + * console.log(array); + * // => [{ 'x': 2 }] + */ + function pullAllBy(array, values, iteratee) { + return (array && array.length && values && values.length) + ? basePullAll(array, values, getIteratee(iteratee, 2)) + : array; + } + + /** + * This method is like `_.pullAll` except that it accepts `comparator` which + * is invoked to compare elements of `array` to `values`. The comparator is + * invoked with two arguments: (arrVal, othVal). + * + * **Note:** Unlike `_.differenceWith`, this method mutates `array`. + * + * @static + * @memberOf _ + * @since 4.6.0 + * @category Array + * @param {Array} array The array to modify. + * @param {Array} values The values to remove. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns `array`. + * @example + * + * var array = [{ 'x': 1, 'y': 2 }, { 'x': 3, 'y': 4 }, { 'x': 5, 'y': 6 }]; + * + * _.pullAllWith(array, [{ 'x': 3, 'y': 4 }], _.isEqual); + * console.log(array); + * // => [{ 'x': 1, 'y': 2 }, { 'x': 5, 'y': 6 }] + */ + function pullAllWith(array, values, comparator) { + return (array && array.length && values && values.length) + ? basePullAll(array, values, undefined, comparator) + : array; + } + + /** + * Removes elements from `array` corresponding to `indexes` and returns an + * array of removed elements. + * + * **Note:** Unlike `_.at`, this method mutates `array`. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to modify. + * @param {...(number|number[])} [indexes] The indexes of elements to remove. + * @returns {Array} Returns the new array of removed elements. + * @example + * + * var array = ['a', 'b', 'c', 'd']; + * var pulled = _.pullAt(array, [1, 3]); + * + * console.log(array); + * // => ['a', 'c'] + * + * console.log(pulled); + * // => ['b', 'd'] + */ + var pullAt = flatRest(function(array, indexes) { + var length = array == null ? 0 : array.length, + result = baseAt(array, indexes); + + basePullAt(array, arrayMap(indexes, function(index) { + return isIndex(index, length) ? +index : index; + }).sort(compareAscending)); + + return result; + }); + + /** + * Removes all elements from `array` that `predicate` returns truthy for + * and returns an array of the removed elements. The predicate is invoked + * with three arguments: (value, index, array). + * + * **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull` + * to pull elements from an array by value. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Array + * @param {Array} array The array to modify. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new array of removed elements. + * @example + * + * var array = [1, 2, 3, 4]; + * var evens = _.remove(array, function(n) { + * return n % 2 == 0; + * }); + * + * console.log(array); + * // => [1, 3] + * + * console.log(evens); + * // => [2, 4] + */ + function remove(array, predicate) { + var result = []; + if (!(array && array.length)) { + return result; + } + var index = -1, + indexes = [], + length = array.length; + + predicate = getIteratee(predicate, 3); + while (++index < length) { + var value = array[index]; + if (predicate(value, index, array)) { + result.push(value); + indexes.push(index); + } + } + basePullAt(array, indexes); + return result; + } + + /** + * Reverses `array` so that the first element becomes the last, the second + * element becomes the second to last, and so on. + * + * **Note:** This method mutates `array` and is based on + * [`Array#reverse`](https://mdn.io/Array/reverse). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to modify. + * @returns {Array} Returns `array`. + * @example + * + * var array = [1, 2, 3]; + * + * _.reverse(array); + * // => [3, 2, 1] + * + * console.log(array); + * // => [3, 2, 1] + */ + function reverse(array) { + return array == null ? array : nativeReverse.call(array); + } + + /** + * Creates a slice of `array` from `start` up to, but not including, `end`. + * + * **Note:** This method is used instead of + * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are + * returned. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to slice. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the slice of `array`. + */ + function slice(array, start, end) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + if (end && typeof end != 'number' && isIterateeCall(array, start, end)) { + start = 0; + end = length; + } + else { + start = start == null ? 0 : toInteger(start); + end = end === undefined ? length : toInteger(end); + } + return baseSlice(array, start, end); + } + + /** + * Uses a binary search to determine the lowest index at which `value` + * should be inserted into `array` in order to maintain its sort order. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The sorted array to inspect. + * @param {*} value The value to evaluate. + * @returns {number} Returns the index at which `value` should be inserted + * into `array`. + * @example + * + * _.sortedIndex([30, 50], 40); + * // => 1 + */ + function sortedIndex(array, value) { + return baseSortedIndex(array, value); + } + + /** + * This method is like `_.sortedIndex` except that it accepts `iteratee` + * which is invoked for `value` and each element of `array` to compute their + * sort ranking. The iteratee is invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The sorted array to inspect. + * @param {*} value The value to evaluate. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {number} Returns the index at which `value` should be inserted + * into `array`. + * @example + * + * var objects = [{ 'x': 4 }, { 'x': 5 }]; + * + * _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; }); + * // => 0 + * + * // The `_.property` iteratee shorthand. + * _.sortedIndexBy(objects, { 'x': 4 }, 'x'); + * // => 0 + */ + function sortedIndexBy(array, value, iteratee) { + return baseSortedIndexBy(array, value, getIteratee(iteratee, 2)); + } + + /** + * This method is like `_.indexOf` except that it performs a binary + * search on a sorted `array`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @returns {number} Returns the index of the matched value, else `-1`. + * @example + * + * _.sortedIndexOf([4, 5, 5, 5, 6], 5); + * // => 1 + */ + function sortedIndexOf(array, value) { + var length = array == null ? 0 : array.length; + if (length) { + var index = baseSortedIndex(array, value); + if (index < length && eq(array[index], value)) { + return index; + } + } + return -1; + } + + /** + * This method is like `_.sortedIndex` except that it returns the highest + * index at which `value` should be inserted into `array` in order to + * maintain its sort order. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The sorted array to inspect. + * @param {*} value The value to evaluate. + * @returns {number} Returns the index at which `value` should be inserted + * into `array`. + * @example + * + * _.sortedLastIndex([4, 5, 5, 5, 6], 5); + * // => 4 + */ + function sortedLastIndex(array, value) { + return baseSortedIndex(array, value, true); + } + + /** + * This method is like `_.sortedLastIndex` except that it accepts `iteratee` + * which is invoked for `value` and each element of `array` to compute their + * sort ranking. The iteratee is invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The sorted array to inspect. + * @param {*} value The value to evaluate. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {number} Returns the index at which `value` should be inserted + * into `array`. + * @example + * + * var objects = [{ 'x': 4 }, { 'x': 5 }]; + * + * _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; }); + * // => 1 + * + * // The `_.property` iteratee shorthand. + * _.sortedLastIndexBy(objects, { 'x': 4 }, 'x'); + * // => 1 + */ + function sortedLastIndexBy(array, value, iteratee) { + return baseSortedIndexBy(array, value, getIteratee(iteratee, 2), true); + } + + /** + * This method is like `_.lastIndexOf` except that it performs a binary + * search on a sorted `array`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @returns {number} Returns the index of the matched value, else `-1`. + * @example + * + * _.sortedLastIndexOf([4, 5, 5, 5, 6], 5); + * // => 3 + */ + function sortedLastIndexOf(array, value) { + var length = array == null ? 0 : array.length; + if (length) { + var index = baseSortedIndex(array, value, true) - 1; + if (eq(array[index], value)) { + return index; + } + } + return -1; + } + + /** + * This method is like `_.uniq` except that it's designed and optimized + * for sorted arrays. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @returns {Array} Returns the new duplicate free array. + * @example + * + * _.sortedUniq([1, 1, 2]); + * // => [1, 2] + */ + function sortedUniq(array) { + return (array && array.length) + ? baseSortedUniq(array) + : []; + } + + /** + * This method is like `_.uniqBy` except that it's designed and optimized + * for sorted arrays. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [iteratee] The iteratee invoked per element. + * @returns {Array} Returns the new duplicate free array. + * @example + * + * _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor); + * // => [1.1, 2.3] + */ + function sortedUniqBy(array, iteratee) { + return (array && array.length) + ? baseSortedUniq(array, getIteratee(iteratee, 2)) + : []; + } + + /** + * Gets all but the first element of `array`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to query. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.tail([1, 2, 3]); + * // => [2, 3] + */ + function tail(array) { + var length = array == null ? 0 : array.length; + return length ? baseSlice(array, 1, length) : []; + } + + /** + * Creates a slice of `array` with `n` elements taken from the beginning. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to take. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.take([1, 2, 3]); + * // => [1] + * + * _.take([1, 2, 3], 2); + * // => [1, 2] + * + * _.take([1, 2, 3], 5); + * // => [1, 2, 3] + * + * _.take([1, 2, 3], 0); + * // => [] + */ + function take(array, n, guard) { + if (!(array && array.length)) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + return baseSlice(array, 0, n < 0 ? 0 : n); + } + + /** + * Creates a slice of `array` with `n` elements taken from the end. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to take. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.takeRight([1, 2, 3]); + * // => [3] + * + * _.takeRight([1, 2, 3], 2); + * // => [2, 3] + * + * _.takeRight([1, 2, 3], 5); + * // => [1, 2, 3] + * + * _.takeRight([1, 2, 3], 0); + * // => [] + */ + function takeRight(array, n, guard) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + n = length - n; + return baseSlice(array, n < 0 ? 0 : n, length); + } + + /** + * Creates a slice of `array` with elements taken from the end. Elements are + * taken until `predicate` returns falsey. The predicate is invoked with + * three arguments: (value, index, array). + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to query. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the slice of `array`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': true }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': false } + * ]; + * + * _.takeRightWhile(users, function(o) { return !o.active; }); + * // => objects for ['fred', 'pebbles'] + * + * // The `_.matches` iteratee shorthand. + * _.takeRightWhile(users, { 'user': 'pebbles', 'active': false }); + * // => objects for ['pebbles'] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.takeRightWhile(users, ['active', false]); + * // => objects for ['fred', 'pebbles'] + * + * // The `_.property` iteratee shorthand. + * _.takeRightWhile(users, 'active'); + * // => [] + */ + function takeRightWhile(array, predicate) { + return (array && array.length) + ? baseWhile(array, getIteratee(predicate, 3), false, true) + : []; + } + + /** + * Creates a slice of `array` with elements taken from the beginning. Elements + * are taken until `predicate` returns falsey. The predicate is invoked with + * three arguments: (value, index, array). + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to query. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the slice of `array`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': false }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': true } + * ]; + * + * _.takeWhile(users, function(o) { return !o.active; }); + * // => objects for ['barney', 'fred'] + * + * // The `_.matches` iteratee shorthand. + * _.takeWhile(users, { 'user': 'barney', 'active': false }); + * // => objects for ['barney'] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.takeWhile(users, ['active', false]); + * // => objects for ['barney', 'fred'] + * + * // The `_.property` iteratee shorthand. + * _.takeWhile(users, 'active'); + * // => [] + */ + function takeWhile(array, predicate) { + return (array && array.length) + ? baseWhile(array, getIteratee(predicate, 3)) + : []; + } + + /** + * Creates an array of unique values, in order, from all given arrays using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @returns {Array} Returns the new array of combined values. + * @example + * + * _.union([2], [1, 2]); + * // => [2, 1] + */ + var union = baseRest(function(arrays) { + return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true)); + }); + + /** + * This method is like `_.union` except that it accepts `iteratee` which is + * invoked for each element of each `arrays` to generate the criterion by + * which uniqueness is computed. Result values are chosen from the first + * array in which the value occurs. The iteratee is invoked with one argument: + * (value). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Array} Returns the new array of combined values. + * @example + * + * _.unionBy([2.1], [1.2, 2.3], Math.floor); + * // => [2.1, 1.2] + * + * // The `_.property` iteratee shorthand. + * _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x'); + * // => [{ 'x': 1 }, { 'x': 2 }] + */ + var unionBy = baseRest(function(arrays) { + var iteratee = last(arrays); + if (isArrayLikeObject(iteratee)) { + iteratee = undefined; + } + return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), getIteratee(iteratee, 2)); + }); + + /** + * This method is like `_.union` except that it accepts `comparator` which + * is invoked to compare elements of `arrays`. Result values are chosen from + * the first array in which the value occurs. The comparator is invoked + * with two arguments: (arrVal, othVal). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of combined values. + * @example + * + * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; + * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }]; + * + * _.unionWith(objects, others, _.isEqual); + * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }] + */ + var unionWith = baseRest(function(arrays) { + var comparator = last(arrays); + comparator = typeof comparator == 'function' ? comparator : undefined; + return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), undefined, comparator); + }); + + /** + * Creates a duplicate-free version of an array, using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons, in which only the first occurrence of each element + * is kept. The order of result values is determined by the order they occur + * in the array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @returns {Array} Returns the new duplicate free array. + * @example + * + * _.uniq([2, 1, 2]); + * // => [2, 1] + */ + function uniq(array) { + return (array && array.length) ? baseUniq(array) : []; + } + + /** + * This method is like `_.uniq` except that it accepts `iteratee` which is + * invoked for each element in `array` to generate the criterion by which + * uniqueness is computed. The order of result values is determined by the + * order they occur in the array. The iteratee is invoked with one argument: + * (value). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Array} Returns the new duplicate free array. + * @example + * + * _.uniqBy([2.1, 1.2, 2.3], Math.floor); + * // => [2.1, 1.2] + * + * // The `_.property` iteratee shorthand. + * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x'); + * // => [{ 'x': 1 }, { 'x': 2 }] + */ + function uniqBy(array, iteratee) { + return (array && array.length) ? baseUniq(array, getIteratee(iteratee, 2)) : []; + } + + /** + * This method is like `_.uniq` except that it accepts `comparator` which + * is invoked to compare elements of `array`. The order of result values is + * determined by the order they occur in the array.The comparator is invoked + * with two arguments: (arrVal, othVal). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new duplicate free array. + * @example + * + * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }]; + * + * _.uniqWith(objects, _.isEqual); + * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }] + */ + function uniqWith(array, comparator) { + comparator = typeof comparator == 'function' ? comparator : undefined; + return (array && array.length) ? baseUniq(array, undefined, comparator) : []; + } + + /** + * This method is like `_.zip` except that it accepts an array of grouped + * elements and creates an array regrouping the elements to their pre-zip + * configuration. + * + * @static + * @memberOf _ + * @since 1.2.0 + * @category Array + * @param {Array} array The array of grouped elements to process. + * @returns {Array} Returns the new array of regrouped elements. + * @example + * + * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]); + * // => [['a', 1, true], ['b', 2, false]] + * + * _.unzip(zipped); + * // => [['a', 'b'], [1, 2], [true, false]] + */ + function unzip(array) { + if (!(array && array.length)) { + return []; + } + var length = 0; + array = arrayFilter(array, function(group) { + if (isArrayLikeObject(group)) { + length = nativeMax(group.length, length); + return true; + } + }); + return baseTimes(length, function(index) { + return arrayMap(array, baseProperty(index)); + }); + } + + /** + * This method is like `_.unzip` except that it accepts `iteratee` to specify + * how regrouped values should be combined. The iteratee is invoked with the + * elements of each group: (...group). + * + * @static + * @memberOf _ + * @since 3.8.0 + * @category Array + * @param {Array} array The array of grouped elements to process. + * @param {Function} [iteratee=_.identity] The function to combine + * regrouped values. + * @returns {Array} Returns the new array of regrouped elements. + * @example + * + * var zipped = _.zip([1, 2], [10, 20], [100, 200]); + * // => [[1, 10, 100], [2, 20, 200]] + * + * _.unzipWith(zipped, _.add); + * // => [3, 30, 300] + */ + function unzipWith(array, iteratee) { + if (!(array && array.length)) { + return []; + } + var result = unzip(array); + if (iteratee == null) { + return result; + } + return arrayMap(result, function(group) { + return apply(iteratee, undefined, group); + }); + } + + /** + * Creates an array excluding all given values using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * **Note:** Unlike `_.pull`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {...*} [values] The values to exclude. + * @returns {Array} Returns the new array of filtered values. + * @see _.difference, _.xor + * @example + * + * _.without([2, 1, 2, 3], 1, 2); + * // => [3] + */ + var without = baseRest(function(array, values) { + return isArrayLikeObject(array) + ? baseDifference(array, values) + : []; + }); + + /** + * Creates an array of unique values that is the + * [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference) + * of the given arrays. The order of result values is determined by the order + * they occur in the arrays. + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @returns {Array} Returns the new array of filtered values. + * @see _.difference, _.without + * @example + * + * _.xor([2, 1], [2, 3]); + * // => [1, 3] + */ + var xor = baseRest(function(arrays) { + return baseXor(arrayFilter(arrays, isArrayLikeObject)); + }); + + /** + * This method is like `_.xor` except that it accepts `iteratee` which is + * invoked for each element of each `arrays` to generate the criterion by + * which by which they're compared. The order of result values is determined + * by the order they occur in the arrays. The iteratee is invoked with one + * argument: (value). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Array} Returns the new array of filtered values. + * @example + * + * _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor); + * // => [1.2, 3.4] + * + * // The `_.property` iteratee shorthand. + * _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x'); + * // => [{ 'x': 2 }] + */ + var xorBy = baseRest(function(arrays) { + var iteratee = last(arrays); + if (isArrayLikeObject(iteratee)) { + iteratee = undefined; + } + return baseXor(arrayFilter(arrays, isArrayLikeObject), getIteratee(iteratee, 2)); + }); + + /** + * This method is like `_.xor` except that it accepts `comparator` which is + * invoked to compare elements of `arrays`. The order of result values is + * determined by the order they occur in the arrays. The comparator is invoked + * with two arguments: (arrVal, othVal). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of filtered values. + * @example + * + * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; + * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }]; + * + * _.xorWith(objects, others, _.isEqual); + * // => [{ 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }] + */ + var xorWith = baseRest(function(arrays) { + var comparator = last(arrays); + comparator = typeof comparator == 'function' ? comparator : undefined; + return baseXor(arrayFilter(arrays, isArrayLikeObject), undefined, comparator); + }); + + /** + * Creates an array of grouped elements, the first of which contains the + * first elements of the given arrays, the second of which contains the + * second elements of the given arrays, and so on. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to process. + * @returns {Array} Returns the new array of grouped elements. + * @example + * + * _.zip(['a', 'b'], [1, 2], [true, false]); + * // => [['a', 1, true], ['b', 2, false]] + */ + var zip = baseRest(unzip); + + /** + * This method is like `_.fromPairs` except that it accepts two arrays, + * one of property identifiers and one of corresponding values. + * + * @static + * @memberOf _ + * @since 0.4.0 + * @category Array + * @param {Array} [props=[]] The property identifiers. + * @param {Array} [values=[]] The property values. + * @returns {Object} Returns the new object. + * @example + * + * _.zipObject(['a', 'b'], [1, 2]); + * // => { 'a': 1, 'b': 2 } + */ + function zipObject(props, values) { + return baseZipObject(props || [], values || [], assignValue); + } + + /** + * This method is like `_.zipObject` except that it supports property paths. + * + * @static + * @memberOf _ + * @since 4.1.0 + * @category Array + * @param {Array} [props=[]] The property identifiers. + * @param {Array} [values=[]] The property values. + * @returns {Object} Returns the new object. + * @example + * + * _.zipObjectDeep(['a.b[0].c', 'a.b[1].d'], [1, 2]); + * // => { 'a': { 'b': [{ 'c': 1 }, { 'd': 2 }] } } + */ + function zipObjectDeep(props, values) { + return baseZipObject(props || [], values || [], baseSet); + } + + /** + * This method is like `_.zip` except that it accepts `iteratee` to specify + * how grouped values should be combined. The iteratee is invoked with the + * elements of each group: (...group). + * + * @static + * @memberOf _ + * @since 3.8.0 + * @category Array + * @param {...Array} [arrays] The arrays to process. + * @param {Function} [iteratee=_.identity] The function to combine + * grouped values. + * @returns {Array} Returns the new array of grouped elements. + * @example + * + * _.zipWith([1, 2], [10, 20], [100, 200], function(a, b, c) { + * return a + b + c; + * }); + * // => [111, 222] + */ + var zipWith = baseRest(function(arrays) { + var length = arrays.length, + iteratee = length > 1 ? arrays[length - 1] : undefined; + + iteratee = typeof iteratee == 'function' ? (arrays.pop(), iteratee) : undefined; + return unzipWith(arrays, iteratee); + }); + + /*------------------------------------------------------------------------*/ + + /** + * Creates a `lodash` wrapper instance that wraps `value` with explicit method + * chain sequences enabled. The result of such sequences must be unwrapped + * with `_#value`. + * + * @static + * @memberOf _ + * @since 1.3.0 + * @category Seq + * @param {*} value The value to wrap. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 }, + * { 'user': 'pebbles', 'age': 1 } + * ]; + * + * var youngest = _ + * .chain(users) + * .sortBy('age') + * .map(function(o) { + * return o.user + ' is ' + o.age; + * }) + * .head() + * .value(); + * // => 'pebbles is 1' + */ + function chain(value) { + var result = lodash(value); + result.__chain__ = true; + return result; + } + + /** + * This method invokes `interceptor` and returns `value`. The interceptor + * is invoked with one argument; (value). The purpose of this method is to + * "tap into" a method chain sequence in order to modify intermediate results. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @param {*} value The value to provide to `interceptor`. + * @param {Function} interceptor The function to invoke. + * @returns {*} Returns `value`. + * @example + * + * _([1, 2, 3]) + * .tap(function(array) { + * // Mutate input array. + * array.pop(); + * }) + * .reverse() + * .value(); + * // => [2, 1] + */ + function tap(value, interceptor) { + interceptor(value); + return value; + } + + /** + * This method is like `_.tap` except that it returns the result of `interceptor`. + * The purpose of this method is to "pass thru" values replacing intermediate + * results in a method chain sequence. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Seq + * @param {*} value The value to provide to `interceptor`. + * @param {Function} interceptor The function to invoke. + * @returns {*} Returns the result of `interceptor`. + * @example + * + * _(' abc ') + * .chain() + * .trim() + * .thru(function(value) { + * return [value]; + * }) + * .value(); + * // => ['abc'] + */ + function thru(value, interceptor) { + return interceptor(value); + } + + /** + * This method is the wrapper version of `_.at`. + * + * @name at + * @memberOf _ + * @since 1.0.0 + * @category Seq + * @param {...(string|string[])} [paths] The property paths to pick. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; + * + * _(object).at(['a[0].b.c', 'a[1]']).value(); + * // => [3, 4] + */ + var wrapperAt = flatRest(function(paths) { + var length = paths.length, + start = length ? paths[0] : 0, + value = this.__wrapped__, + interceptor = function(object) { return baseAt(object, paths); }; + + if (length > 1 || this.__actions__.length || + !(value instanceof LazyWrapper) || !isIndex(start)) { + return this.thru(interceptor); + } + value = value.slice(start, +start + (length ? 1 : 0)); + value.__actions__.push({ + 'func': thru, + 'args': [interceptor], + 'thisArg': undefined + }); + return new LodashWrapper(value, this.__chain__).thru(function(array) { + if (length && !array.length) { + array.push(undefined); + } + return array; + }); + }); + + /** + * Creates a `lodash` wrapper instance with explicit method chain sequences enabled. + * + * @name chain + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 } + * ]; + * + * // A sequence without explicit chaining. + * _(users).head(); + * // => { 'user': 'barney', 'age': 36 } + * + * // A sequence with explicit chaining. + * _(users) + * .chain() + * .head() + * .pick('user') + * .value(); + * // => { 'user': 'barney' } + */ + function wrapperChain() { + return chain(this); + } + + /** + * Executes the chain sequence and returns the wrapped result. + * + * @name commit + * @memberOf _ + * @since 3.2.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var array = [1, 2]; + * var wrapped = _(array).push(3); + * + * console.log(array); + * // => [1, 2] + * + * wrapped = wrapped.commit(); + * console.log(array); + * // => [1, 2, 3] + * + * wrapped.last(); + * // => 3 + * + * console.log(array); + * // => [1, 2, 3] + */ + function wrapperCommit() { + return new LodashWrapper(this.value(), this.__chain__); + } + + /** + * Gets the next value on a wrapped object following the + * [iterator protocol](https://mdn.io/iteration_protocols#iterator). + * + * @name next + * @memberOf _ + * @since 4.0.0 + * @category Seq + * @returns {Object} Returns the next iterator value. + * @example + * + * var wrapped = _([1, 2]); + * + * wrapped.next(); + * // => { 'done': false, 'value': 1 } + * + * wrapped.next(); + * // => { 'done': false, 'value': 2 } + * + * wrapped.next(); + * // => { 'done': true, 'value': undefined } + */ + function wrapperNext() { + if (this.__values__ === undefined) { + this.__values__ = toArray(this.value()); + } + var done = this.__index__ >= this.__values__.length, + value = done ? undefined : this.__values__[this.__index__++]; + + return { 'done': done, 'value': value }; + } + + /** + * Enables the wrapper to be iterable. + * + * @name Symbol.iterator + * @memberOf _ + * @since 4.0.0 + * @category Seq + * @returns {Object} Returns the wrapper object. + * @example + * + * var wrapped = _([1, 2]); + * + * wrapped[Symbol.iterator]() === wrapped; + * // => true + * + * Array.from(wrapped); + * // => [1, 2] + */ + function wrapperToIterator() { + return this; + } + + /** + * Creates a clone of the chain sequence planting `value` as the wrapped value. + * + * @name plant + * @memberOf _ + * @since 3.2.0 + * @category Seq + * @param {*} value The value to plant. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * function square(n) { + * return n * n; + * } + * + * var wrapped = _([1, 2]).map(square); + * var other = wrapped.plant([3, 4]); + * + * other.value(); + * // => [9, 16] + * + * wrapped.value(); + * // => [1, 4] + */ + function wrapperPlant(value) { + var result, + parent = this; + + while (parent instanceof baseLodash) { + var clone = wrapperClone(parent); + clone.__index__ = 0; + clone.__values__ = undefined; + if (result) { + previous.__wrapped__ = clone; + } else { + result = clone; + } + var previous = clone; + parent = parent.__wrapped__; + } + previous.__wrapped__ = value; + return result; + } + + /** + * This method is the wrapper version of `_.reverse`. + * + * **Note:** This method mutates the wrapped array. + * + * @name reverse + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var array = [1, 2, 3]; + * + * _(array).reverse().value() + * // => [3, 2, 1] + * + * console.log(array); + * // => [3, 2, 1] + */ + function wrapperReverse() { + var value = this.__wrapped__; + if (value instanceof LazyWrapper) { + var wrapped = value; + if (this.__actions__.length) { + wrapped = new LazyWrapper(this); + } + wrapped = wrapped.reverse(); + wrapped.__actions__.push({ + 'func': thru, + 'args': [reverse], + 'thisArg': undefined + }); + return new LodashWrapper(wrapped, this.__chain__); + } + return this.thru(reverse); + } + + /** + * Executes the chain sequence to resolve the unwrapped value. + * + * @name value + * @memberOf _ + * @since 0.1.0 + * @alias toJSON, valueOf + * @category Seq + * @returns {*} Returns the resolved unwrapped value. + * @example + * + * _([1, 2, 3]).value(); + * // => [1, 2, 3] + */ + function wrapperValue() { + return baseWrapperValue(this.__wrapped__, this.__actions__); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates an object composed of keys generated from the results of running + * each element of `collection` thru `iteratee`. The corresponding value of + * each key is the number of times the key was returned by `iteratee`. The + * iteratee is invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The iteratee to transform keys. + * @returns {Object} Returns the composed aggregate object. + * @example + * + * _.countBy([6.1, 4.2, 6.3], Math.floor); + * // => { '4': 1, '6': 2 } + * + * // The `_.property` iteratee shorthand. + * _.countBy(['one', 'two', 'three'], 'length'); + * // => { '3': 2, '5': 1 } + */ + var countBy = createAggregator(function(result, value, key) { + if (hasOwnProperty.call(result, key)) { + ++result[key]; + } else { + baseAssignValue(result, key, 1); + } + }); + + /** + * Checks if `predicate` returns truthy for **all** elements of `collection`. + * Iteration is stopped once `predicate` returns falsey. The predicate is + * invoked with three arguments: (value, index|key, collection). + * + * **Note:** This method returns `true` for + * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because + * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of + * elements of empty collections. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false`. + * @example + * + * _.every([true, 1, null, 'yes'], Boolean); + * // => false + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': false }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * // The `_.matches` iteratee shorthand. + * _.every(users, { 'user': 'barney', 'active': false }); + * // => false + * + * // The `_.matchesProperty` iteratee shorthand. + * _.every(users, ['active', false]); + * // => true + * + * // The `_.property` iteratee shorthand. + * _.every(users, 'active'); + * // => false + */ + function every(collection, predicate, guard) { + var func = isArray(collection) ? arrayEvery : baseEvery; + if (guard && isIterateeCall(collection, predicate, guard)) { + predicate = undefined; + } + return func(collection, getIteratee(predicate, 3)); + } + + /** + * Iterates over elements of `collection`, returning an array of all elements + * `predicate` returns truthy for. The predicate is invoked with three + * arguments: (value, index|key, collection). + * + * **Note:** Unlike `_.remove`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + * @see _.reject + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * _.filter(users, function(o) { return !o.active; }); + * // => objects for ['fred'] + * + * // The `_.matches` iteratee shorthand. + * _.filter(users, { 'age': 36, 'active': true }); + * // => objects for ['barney'] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.filter(users, ['active', false]); + * // => objects for ['fred'] + * + * // The `_.property` iteratee shorthand. + * _.filter(users, 'active'); + * // => objects for ['barney'] + * + * // Combining several predicates using `_.overEvery` or `_.overSome`. + * _.filter(users, _.overSome([{ 'age': 36 }, ['age', 40]])); + * // => objects for ['fred', 'barney'] + */ + function filter(collection, predicate) { + var func = isArray(collection) ? arrayFilter : baseFilter; + return func(collection, getIteratee(predicate, 3)); + } + + /** + * Iterates over elements of `collection`, returning the first element + * `predicate` returns truthy for. The predicate is invoked with three + * arguments: (value, index|key, collection). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=0] The index to search from. + * @returns {*} Returns the matched element, else `undefined`. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false }, + * { 'user': 'pebbles', 'age': 1, 'active': true } + * ]; + * + * _.find(users, function(o) { return o.age < 40; }); + * // => object for 'barney' + * + * // The `_.matches` iteratee shorthand. + * _.find(users, { 'age': 1, 'active': true }); + * // => object for 'pebbles' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.find(users, ['active', false]); + * // => object for 'fred' + * + * // The `_.property` iteratee shorthand. + * _.find(users, 'active'); + * // => object for 'barney' + */ + var find = createFind(findIndex); + + /** + * This method is like `_.find` except that it iterates over elements of + * `collection` from right to left. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Collection + * @param {Array|Object} collection The collection to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=collection.length-1] The index to search from. + * @returns {*} Returns the matched element, else `undefined`. + * @example + * + * _.findLast([1, 2, 3, 4], function(n) { + * return n % 2 == 1; + * }); + * // => 3 + */ + var findLast = createFind(findLastIndex); + + /** + * Creates a flattened array of values by running each element in `collection` + * thru `iteratee` and flattening the mapped results. The iteratee is invoked + * with three arguments: (value, index|key, collection). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new flattened array. + * @example + * + * function duplicate(n) { + * return [n, n]; + * } + * + * _.flatMap([1, 2], duplicate); + * // => [1, 1, 2, 2] + */ + function flatMap(collection, iteratee) { + return baseFlatten(map(collection, iteratee), 1); + } + + /** + * This method is like `_.flatMap` except that it recursively flattens the + * mapped results. + * + * @static + * @memberOf _ + * @since 4.7.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new flattened array. + * @example + * + * function duplicate(n) { + * return [[[n, n]]]; + * } + * + * _.flatMapDeep([1, 2], duplicate); + * // => [1, 1, 2, 2] + */ + function flatMapDeep(collection, iteratee) { + return baseFlatten(map(collection, iteratee), INFINITY); + } + + /** + * This method is like `_.flatMap` except that it recursively flattens the + * mapped results up to `depth` times. + * + * @static + * @memberOf _ + * @since 4.7.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @param {number} [depth=1] The maximum recursion depth. + * @returns {Array} Returns the new flattened array. + * @example + * + * function duplicate(n) { + * return [[[n, n]]]; + * } + * + * _.flatMapDepth([1, 2], duplicate, 2); + * // => [[1, 1], [2, 2]] + */ + function flatMapDepth(collection, iteratee, depth) { + depth = depth === undefined ? 1 : toInteger(depth); + return baseFlatten(map(collection, iteratee), depth); + } + + /** + * Iterates over elements of `collection` and invokes `iteratee` for each element. + * The iteratee is invoked with three arguments: (value, index|key, collection). + * Iteratee functions may exit iteration early by explicitly returning `false`. + * + * **Note:** As with other "Collections" methods, objects with a "length" + * property are iterated like arrays. To avoid this behavior use `_.forIn` + * or `_.forOwn` for object iteration. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @alias each + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Array|Object} Returns `collection`. + * @see _.forEachRight + * @example + * + * _.forEach([1, 2], function(value) { + * console.log(value); + * }); + * // => Logs `1` then `2`. + * + * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) { + * console.log(key); + * }); + * // => Logs 'a' then 'b' (iteration order is not guaranteed). + */ + function forEach(collection, iteratee) { + var func = isArray(collection) ? arrayEach : baseEach; + return func(collection, getIteratee(iteratee, 3)); + } + + /** + * This method is like `_.forEach` except that it iterates over elements of + * `collection` from right to left. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @alias eachRight + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Array|Object} Returns `collection`. + * @see _.forEach + * @example + * + * _.forEachRight([1, 2], function(value) { + * console.log(value); + * }); + * // => Logs `2` then `1`. + */ + function forEachRight(collection, iteratee) { + var func = isArray(collection) ? arrayEachRight : baseEachRight; + return func(collection, getIteratee(iteratee, 3)); + } + + /** + * Creates an object composed of keys generated from the results of running + * each element of `collection` thru `iteratee`. The order of grouped values + * is determined by the order they occur in `collection`. The corresponding + * value of each key is an array of elements responsible for generating the + * key. The iteratee is invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The iteratee to transform keys. + * @returns {Object} Returns the composed aggregate object. + * @example + * + * _.groupBy([6.1, 4.2, 6.3], Math.floor); + * // => { '4': [4.2], '6': [6.1, 6.3] } + * + * // The `_.property` iteratee shorthand. + * _.groupBy(['one', 'two', 'three'], 'length'); + * // => { '3': ['one', 'two'], '5': ['three'] } + */ + var groupBy = createAggregator(function(result, value, key) { + if (hasOwnProperty.call(result, key)) { + result[key].push(value); + } else { + baseAssignValue(result, key, [value]); + } + }); + + /** + * Checks if `value` is in `collection`. If `collection` is a string, it's + * checked for a substring of `value`, otherwise + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * is used for equality comparisons. If `fromIndex` is negative, it's used as + * the offset from the end of `collection`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object|string} collection The collection to inspect. + * @param {*} value The value to search for. + * @param {number} [fromIndex=0] The index to search from. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`. + * @returns {boolean} Returns `true` if `value` is found, else `false`. + * @example + * + * _.includes([1, 2, 3], 1); + * // => true + * + * _.includes([1, 2, 3], 1, 2); + * // => false + * + * _.includes({ 'a': 1, 'b': 2 }, 1); + * // => true + * + * _.includes('abcd', 'bc'); + * // => true + */ + function includes(collection, value, fromIndex, guard) { + collection = isArrayLike(collection) ? collection : values(collection); + fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0; + + var length = collection.length; + if (fromIndex < 0) { + fromIndex = nativeMax(length + fromIndex, 0); + } + return isString(collection) + ? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1) + : (!!length && baseIndexOf(collection, value, fromIndex) > -1); + } + + /** + * Invokes the method at `path` of each element in `collection`, returning + * an array of the results of each invoked method. Any additional arguments + * are provided to each invoked method. If `path` is a function, it's invoked + * for, and `this` bound to, each element in `collection`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Array|Function|string} path The path of the method to invoke or + * the function invoked per iteration. + * @param {...*} [args] The arguments to invoke each method with. + * @returns {Array} Returns the array of results. + * @example + * + * _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort'); + * // => [[1, 5, 7], [1, 2, 3]] + * + * _.invokeMap([123, 456], String.prototype.split, ''); + * // => [['1', '2', '3'], ['4', '5', '6']] + */ + var invokeMap = baseRest(function(collection, path, args) { + var index = -1, + isFunc = typeof path == 'function', + result = isArrayLike(collection) ? Array(collection.length) : []; + + baseEach(collection, function(value) { + result[++index] = isFunc ? apply(path, value, args) : baseInvoke(value, path, args); + }); + return result; + }); + + /** + * Creates an object composed of keys generated from the results of running + * each element of `collection` thru `iteratee`. The corresponding value of + * each key is the last element responsible for generating the key. The + * iteratee is invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The iteratee to transform keys. + * @returns {Object} Returns the composed aggregate object. + * @example + * + * var array = [ + * { 'dir': 'left', 'code': 97 }, + * { 'dir': 'right', 'code': 100 } + * ]; + * + * _.keyBy(array, function(o) { + * return String.fromCharCode(o.code); + * }); + * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } } + * + * _.keyBy(array, 'dir'); + * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } } + */ + var keyBy = createAggregator(function(result, value, key) { + baseAssignValue(result, key, value); + }); + + /** + * Creates an array of values by running each element in `collection` thru + * `iteratee`. The iteratee is invoked with three arguments: + * (value, index|key, collection). + * + * Many lodash methods are guarded to work as iteratees for methods like + * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`. + * + * The guarded methods are: + * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`, + * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`, + * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`, + * `template`, `trim`, `trimEnd`, `trimStart`, and `words` + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + * @example + * + * function square(n) { + * return n * n; + * } + * + * _.map([4, 8], square); + * // => [16, 64] + * + * _.map({ 'a': 4, 'b': 8 }, square); + * // => [16, 64] (iteration order is not guaranteed) + * + * var users = [ + * { 'user': 'barney' }, + * { 'user': 'fred' } + * ]; + * + * // The `_.property` iteratee shorthand. + * _.map(users, 'user'); + * // => ['barney', 'fred'] + */ + function map(collection, iteratee) { + var func = isArray(collection) ? arrayMap : baseMap; + return func(collection, getIteratee(iteratee, 3)); + } + + /** + * This method is like `_.sortBy` except that it allows specifying the sort + * orders of the iteratees to sort by. If `orders` is unspecified, all values + * are sorted in ascending order. Otherwise, specify an order of "desc" for + * descending or "asc" for ascending sort order of corresponding values. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Array[]|Function[]|Object[]|string[]} [iteratees=[_.identity]] + * The iteratees to sort by. + * @param {string[]} [orders] The sort orders of `iteratees`. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`. + * @returns {Array} Returns the new sorted array. + * @example + * + * var users = [ + * { 'user': 'fred', 'age': 48 }, + * { 'user': 'barney', 'age': 34 }, + * { 'user': 'fred', 'age': 40 }, + * { 'user': 'barney', 'age': 36 } + * ]; + * + * // Sort by `user` in ascending order and by `age` in descending order. + * _.orderBy(users, ['user', 'age'], ['asc', 'desc']); + * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]] + */ + function orderBy(collection, iteratees, orders, guard) { + if (collection == null) { + return []; + } + if (!isArray(iteratees)) { + iteratees = iteratees == null ? [] : [iteratees]; + } + orders = guard ? undefined : orders; + if (!isArray(orders)) { + orders = orders == null ? [] : [orders]; + } + return baseOrderBy(collection, iteratees, orders); + } + + /** + * Creates an array of elements split into two groups, the first of which + * contains elements `predicate` returns truthy for, the second of which + * contains elements `predicate` returns falsey for. The predicate is + * invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the array of grouped elements. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': false }, + * { 'user': 'fred', 'age': 40, 'active': true }, + * { 'user': 'pebbles', 'age': 1, 'active': false } + * ]; + * + * _.partition(users, function(o) { return o.active; }); + * // => objects for [['fred'], ['barney', 'pebbles']] + * + * // The `_.matches` iteratee shorthand. + * _.partition(users, { 'age': 1, 'active': false }); + * // => objects for [['pebbles'], ['barney', 'fred']] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.partition(users, ['active', false]); + * // => objects for [['barney', 'pebbles'], ['fred']] + * + * // The `_.property` iteratee shorthand. + * _.partition(users, 'active'); + * // => objects for [['fred'], ['barney', 'pebbles']] + */ + var partition = createAggregator(function(result, value, key) { + result[key ? 0 : 1].push(value); + }, function() { return [[], []]; }); + + /** + * Reduces `collection` to a value which is the accumulated result of running + * each element in `collection` thru `iteratee`, where each successive + * invocation is supplied the return value of the previous. If `accumulator` + * is not given, the first element of `collection` is used as the initial + * value. The iteratee is invoked with four arguments: + * (accumulator, value, index|key, collection). + * + * Many lodash methods are guarded to work as iteratees for methods like + * `_.reduce`, `_.reduceRight`, and `_.transform`. + * + * The guarded methods are: + * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`, + * and `sortBy` + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @param {*} [accumulator] The initial value. + * @returns {*} Returns the accumulated value. + * @see _.reduceRight + * @example + * + * _.reduce([1, 2], function(sum, n) { + * return sum + n; + * }, 0); + * // => 3 + * + * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { + * (result[value] || (result[value] = [])).push(key); + * return result; + * }, {}); + * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed) + */ + function reduce(collection, iteratee, accumulator) { + var func = isArray(collection) ? arrayReduce : baseReduce, + initAccum = arguments.length < 3; + + return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEach); + } + + /** + * This method is like `_.reduce` except that it iterates over elements of + * `collection` from right to left. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @param {*} [accumulator] The initial value. + * @returns {*} Returns the accumulated value. + * @see _.reduce + * @example + * + * var array = [[0, 1], [2, 3], [4, 5]]; + * + * _.reduceRight(array, function(flattened, other) { + * return flattened.concat(other); + * }, []); + * // => [4, 5, 2, 3, 0, 1] + */ + function reduceRight(collection, iteratee, accumulator) { + var func = isArray(collection) ? arrayReduceRight : baseReduce, + initAccum = arguments.length < 3; + + return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEachRight); + } + + /** + * The opposite of `_.filter`; this method returns the elements of `collection` + * that `predicate` does **not** return truthy for. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + * @see _.filter + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': false }, + * { 'user': 'fred', 'age': 40, 'active': true } + * ]; + * + * _.reject(users, function(o) { return !o.active; }); + * // => objects for ['fred'] + * + * // The `_.matches` iteratee shorthand. + * _.reject(users, { 'age': 40, 'active': true }); + * // => objects for ['barney'] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.reject(users, ['active', false]); + * // => objects for ['fred'] + * + * // The `_.property` iteratee shorthand. + * _.reject(users, 'active'); + * // => objects for ['barney'] + */ + function reject(collection, predicate) { + var func = isArray(collection) ? arrayFilter : baseFilter; + return func(collection, negate(getIteratee(predicate, 3))); + } + + /** + * Gets a random element from `collection`. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Collection + * @param {Array|Object} collection The collection to sample. + * @returns {*} Returns the random element. + * @example + * + * _.sample([1, 2, 3, 4]); + * // => 2 + */ + function sample(collection) { + var func = isArray(collection) ? arraySample : baseSample; + return func(collection); + } + + /** + * Gets `n` random elements at unique keys from `collection` up to the + * size of `collection`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Collection + * @param {Array|Object} collection The collection to sample. + * @param {number} [n=1] The number of elements to sample. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the random elements. + * @example + * + * _.sampleSize([1, 2, 3], 2); + * // => [3, 1] + * + * _.sampleSize([1, 2, 3], 4); + * // => [2, 3, 1] + */ + function sampleSize(collection, n, guard) { + if ((guard ? isIterateeCall(collection, n, guard) : n === undefined)) { + n = 1; + } else { + n = toInteger(n); + } + var func = isArray(collection) ? arraySampleSize : baseSampleSize; + return func(collection, n); + } + + /** + * Creates an array of shuffled values, using a version of the + * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to shuffle. + * @returns {Array} Returns the new shuffled array. + * @example + * + * _.shuffle([1, 2, 3, 4]); + * // => [4, 1, 3, 2] + */ + function shuffle(collection) { + var func = isArray(collection) ? arrayShuffle : baseShuffle; + return func(collection); + } + + /** + * Gets the size of `collection` by returning its length for array-like + * values or the number of own enumerable string keyed properties for objects. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object|string} collection The collection to inspect. + * @returns {number} Returns the collection size. + * @example + * + * _.size([1, 2, 3]); + * // => 3 + * + * _.size({ 'a': 1, 'b': 2 }); + * // => 2 + * + * _.size('pebbles'); + * // => 7 + */ + function size(collection) { + if (collection == null) { + return 0; + } + if (isArrayLike(collection)) { + return isString(collection) ? stringSize(collection) : collection.length; + } + var tag = getTag(collection); + if (tag == mapTag || tag == setTag) { + return collection.size; + } + return baseKeys(collection).length; + } + + /** + * Checks if `predicate` returns truthy for **any** element of `collection`. + * Iteration is stopped once `predicate` returns truthy. The predicate is + * invoked with three arguments: (value, index|key, collection). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + * @example + * + * _.some([null, 0, 'yes', false], Boolean); + * // => true + * + * var users = [ + * { 'user': 'barney', 'active': true }, + * { 'user': 'fred', 'active': false } + * ]; + * + * // The `_.matches` iteratee shorthand. + * _.some(users, { 'user': 'barney', 'active': false }); + * // => false + * + * // The `_.matchesProperty` iteratee shorthand. + * _.some(users, ['active', false]); + * // => true + * + * // The `_.property` iteratee shorthand. + * _.some(users, 'active'); + * // => true + */ + function some(collection, predicate, guard) { + var func = isArray(collection) ? arraySome : baseSome; + if (guard && isIterateeCall(collection, predicate, guard)) { + predicate = undefined; + } + return func(collection, getIteratee(predicate, 3)); + } + + /** + * Creates an array of elements, sorted in ascending order by the results of + * running each element in a collection thru each iteratee. This method + * performs a stable sort, that is, it preserves the original sort order of + * equal elements. The iteratees are invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {...(Function|Function[])} [iteratees=[_.identity]] + * The iteratees to sort by. + * @returns {Array} Returns the new sorted array. + * @example + * + * var users = [ + * { 'user': 'fred', 'age': 48 }, + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 30 }, + * { 'user': 'barney', 'age': 34 } + * ]; + * + * _.sortBy(users, [function(o) { return o.user; }]); + * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 30]] + * + * _.sortBy(users, ['user', 'age']); + * // => objects for [['barney', 34], ['barney', 36], ['fred', 30], ['fred', 48]] + */ + var sortBy = baseRest(function(collection, iteratees) { + if (collection == null) { + return []; + } + var length = iteratees.length; + if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) { + iteratees = []; + } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) { + iteratees = [iteratees[0]]; + } + return baseOrderBy(collection, baseFlatten(iteratees, 1), []); + }); + + /*------------------------------------------------------------------------*/ + + /** + * Gets the timestamp of the number of milliseconds that have elapsed since + * the Unix epoch (1 January 1970 00:00:00 UTC). + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Date + * @returns {number} Returns the timestamp. + * @example + * + * _.defer(function(stamp) { + * console.log(_.now() - stamp); + * }, _.now()); + * // => Logs the number of milliseconds it took for the deferred invocation. + */ + var now = ctxNow || function() { + return root.Date.now(); + }; + + /*------------------------------------------------------------------------*/ + + /** + * The opposite of `_.before`; this method creates a function that invokes + * `func` once it's called `n` or more times. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {number} n The number of calls before `func` is invoked. + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * var saves = ['profile', 'settings']; + * + * var done = _.after(saves.length, function() { + * console.log('done saving!'); + * }); + * + * _.forEach(saves, function(type) { + * asyncSave({ 'type': type, 'complete': done }); + * }); + * // => Logs 'done saving!' after the two async saves have completed. + */ + function after(n, func) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + n = toInteger(n); + return function() { + if (--n < 1) { + return func.apply(this, arguments); + } + }; + } + + /** + * Creates a function that invokes `func`, with up to `n` arguments, + * ignoring any additional arguments. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Function + * @param {Function} func The function to cap arguments for. + * @param {number} [n=func.length] The arity cap. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Function} Returns the new capped function. + * @example + * + * _.map(['6', '8', '10'], _.ary(parseInt, 1)); + * // => [6, 8, 10] + */ + function ary(func, n, guard) { + n = guard ? undefined : n; + n = (func && n == null) ? func.length : n; + return createWrap(func, WRAP_ARY_FLAG, undefined, undefined, undefined, undefined, n); + } + + /** + * Creates a function that invokes `func`, with the `this` binding and arguments + * of the created function, while it's called less than `n` times. Subsequent + * calls to the created function return the result of the last `func` invocation. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Function + * @param {number} n The number of calls at which `func` is no longer invoked. + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * jQuery(element).on('click', _.before(5, addContactToList)); + * // => Allows adding up to 4 contacts to the list. + */ + function before(n, func) { + var result; + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + n = toInteger(n); + return function() { + if (--n > 0) { + result = func.apply(this, arguments); + } + if (n <= 1) { + func = undefined; + } + return result; + }; + } + + /** + * Creates a function that invokes `func` with the `this` binding of `thisArg` + * and `partials` prepended to the arguments it receives. + * + * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds, + * may be used as a placeholder for partially applied arguments. + * + * **Note:** Unlike native `Function#bind`, this method doesn't set the "length" + * property of bound functions. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to bind. + * @param {*} thisArg The `this` binding of `func`. + * @param {...*} [partials] The arguments to be partially applied. + * @returns {Function} Returns the new bound function. + * @example + * + * function greet(greeting, punctuation) { + * return greeting + ' ' + this.user + punctuation; + * } + * + * var object = { 'user': 'fred' }; + * + * var bound = _.bind(greet, object, 'hi'); + * bound('!'); + * // => 'hi fred!' + * + * // Bound with placeholders. + * var bound = _.bind(greet, object, _, '!'); + * bound('hi'); + * // => 'hi fred!' + */ + var bind = baseRest(function(func, thisArg, partials) { + var bitmask = WRAP_BIND_FLAG; + if (partials.length) { + var holders = replaceHolders(partials, getHolder(bind)); + bitmask |= WRAP_PARTIAL_FLAG; + } + return createWrap(func, bitmask, thisArg, partials, holders); + }); + + /** + * Creates a function that invokes the method at `object[key]` with `partials` + * prepended to the arguments it receives. + * + * This method differs from `_.bind` by allowing bound functions to reference + * methods that may be redefined or don't yet exist. See + * [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern) + * for more details. + * + * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic + * builds, may be used as a placeholder for partially applied arguments. + * + * @static + * @memberOf _ + * @since 0.10.0 + * @category Function + * @param {Object} object The object to invoke the method on. + * @param {string} key The key of the method. + * @param {...*} [partials] The arguments to be partially applied. + * @returns {Function} Returns the new bound function. + * @example + * + * var object = { + * 'user': 'fred', + * 'greet': function(greeting, punctuation) { + * return greeting + ' ' + this.user + punctuation; + * } + * }; + * + * var bound = _.bindKey(object, 'greet', 'hi'); + * bound('!'); + * // => 'hi fred!' + * + * object.greet = function(greeting, punctuation) { + * return greeting + 'ya ' + this.user + punctuation; + * }; + * + * bound('!'); + * // => 'hiya fred!' + * + * // Bound with placeholders. + * var bound = _.bindKey(object, 'greet', _, '!'); + * bound('hi'); + * // => 'hiya fred!' + */ + var bindKey = baseRest(function(object, key, partials) { + var bitmask = WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG; + if (partials.length) { + var holders = replaceHolders(partials, getHolder(bindKey)); + bitmask |= WRAP_PARTIAL_FLAG; + } + return createWrap(key, bitmask, object, partials, holders); + }); + + /** + * Creates a function that accepts arguments of `func` and either invokes + * `func` returning its result, if at least `arity` number of arguments have + * been provided, or returns a function that accepts the remaining `func` + * arguments, and so on. The arity of `func` may be specified if `func.length` + * is not sufficient. + * + * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds, + * may be used as a placeholder for provided arguments. + * + * **Note:** This method doesn't set the "length" property of curried functions. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Function + * @param {Function} func The function to curry. + * @param {number} [arity=func.length] The arity of `func`. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Function} Returns the new curried function. + * @example + * + * var abc = function(a, b, c) { + * return [a, b, c]; + * }; + * + * var curried = _.curry(abc); + * + * curried(1)(2)(3); + * // => [1, 2, 3] + * + * curried(1, 2)(3); + * // => [1, 2, 3] + * + * curried(1, 2, 3); + * // => [1, 2, 3] + * + * // Curried with placeholders. + * curried(1)(_, 3)(2); + * // => [1, 2, 3] + */ + function curry(func, arity, guard) { + arity = guard ? undefined : arity; + var result = createWrap(func, WRAP_CURRY_FLAG, undefined, undefined, undefined, undefined, undefined, arity); + result.placeholder = curry.placeholder; + return result; + } + + /** + * This method is like `_.curry` except that arguments are applied to `func` + * in the manner of `_.partialRight` instead of `_.partial`. + * + * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic + * builds, may be used as a placeholder for provided arguments. + * + * **Note:** This method doesn't set the "length" property of curried functions. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Function + * @param {Function} func The function to curry. + * @param {number} [arity=func.length] The arity of `func`. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Function} Returns the new curried function. + * @example + * + * var abc = function(a, b, c) { + * return [a, b, c]; + * }; + * + * var curried = _.curryRight(abc); + * + * curried(3)(2)(1); + * // => [1, 2, 3] + * + * curried(2, 3)(1); + * // => [1, 2, 3] + * + * curried(1, 2, 3); + * // => [1, 2, 3] + * + * // Curried with placeholders. + * curried(3)(1, _)(2); + * // => [1, 2, 3] + */ + function curryRight(func, arity, guard) { + arity = guard ? undefined : arity; + var result = createWrap(func, WRAP_CURRY_RIGHT_FLAG, undefined, undefined, undefined, undefined, undefined, arity); + result.placeholder = curryRight.placeholder; + return result; + } + + /** + * Creates a debounced function that delays invoking `func` until after `wait` + * milliseconds have elapsed since the last time the debounced function was + * invoked. The debounced function comes with a `cancel` method to cancel + * delayed `func` invocations and a `flush` method to immediately invoke them. + * Provide `options` to indicate whether `func` should be invoked on the + * leading and/or trailing edge of the `wait` timeout. The `func` is invoked + * with the last arguments provided to the debounced function. Subsequent + * calls to the debounced function return the result of the last `func` + * invocation. + * + * **Note:** If `leading` and `trailing` options are `true`, `func` is + * invoked on the trailing edge of the timeout only if the debounced function + * is invoked more than once during the `wait` timeout. + * + * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred + * until to the next tick, similar to `setTimeout` with a timeout of `0`. + * + * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) + * for details over the differences between `_.debounce` and `_.throttle`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to debounce. + * @param {number} [wait=0] The number of milliseconds to delay. + * @param {Object} [options={}] The options object. + * @param {boolean} [options.leading=false] + * Specify invoking on the leading edge of the timeout. + * @param {number} [options.maxWait] + * The maximum time `func` is allowed to be delayed before it's invoked. + * @param {boolean} [options.trailing=true] + * Specify invoking on the trailing edge of the timeout. + * @returns {Function} Returns the new debounced function. + * @example + * + * // Avoid costly calculations while the window size is in flux. + * jQuery(window).on('resize', _.debounce(calculateLayout, 150)); + * + * // Invoke `sendMail` when clicked, debouncing subsequent calls. + * jQuery(element).on('click', _.debounce(sendMail, 300, { + * 'leading': true, + * 'trailing': false + * })); + * + * // Ensure `batchLog` is invoked once after 1 second of debounced calls. + * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 }); + * var source = new EventSource('/stream'); + * jQuery(source).on('message', debounced); + * + * // Cancel the trailing debounced invocation. + * jQuery(window).on('popstate', debounced.cancel); + */ + function debounce(func, wait, options) { + var lastArgs, + lastThis, + maxWait, + result, + timerId, + lastCallTime, + lastInvokeTime = 0, + leading = false, + maxing = false, + trailing = true; + + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + wait = toNumber(wait) || 0; + if (isObject(options)) { + leading = !!options.leading; + maxing = 'maxWait' in options; + maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait; + trailing = 'trailing' in options ? !!options.trailing : trailing; + } + + function invokeFunc(time) { + var args = lastArgs, + thisArg = lastThis; + + lastArgs = lastThis = undefined; + lastInvokeTime = time; + result = func.apply(thisArg, args); + return result; + } + + function leadingEdge(time) { + // Reset any `maxWait` timer. + lastInvokeTime = time; + // Start the timer for the trailing edge. + timerId = setTimeout(timerExpired, wait); + // Invoke the leading edge. + return leading ? invokeFunc(time) : result; + } + + function remainingWait(time) { + var timeSinceLastCall = time - lastCallTime, + timeSinceLastInvoke = time - lastInvokeTime, + timeWaiting = wait - timeSinceLastCall; + + return maxing + ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke) + : timeWaiting; + } + + function shouldInvoke(time) { + var timeSinceLastCall = time - lastCallTime, + timeSinceLastInvoke = time - lastInvokeTime; + + // Either this is the first call, activity has stopped and we're at the + // trailing edge, the system time has gone backwards and we're treating + // it as the trailing edge, or we've hit the `maxWait` limit. + return (lastCallTime === undefined || (timeSinceLastCall >= wait) || + (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait)); + } + + function timerExpired() { + var time = now(); + if (shouldInvoke(time)) { + return trailingEdge(time); + } + // Restart the timer. + timerId = setTimeout(timerExpired, remainingWait(time)); + } + + function trailingEdge(time) { + timerId = undefined; + + // Only invoke if we have `lastArgs` which means `func` has been + // debounced at least once. + if (trailing && lastArgs) { + return invokeFunc(time); + } + lastArgs = lastThis = undefined; + return result; + } + + function cancel() { + if (timerId !== undefined) { + clearTimeout(timerId); + } + lastInvokeTime = 0; + lastArgs = lastCallTime = lastThis = timerId = undefined; + } + + function flush() { + return timerId === undefined ? result : trailingEdge(now()); + } + + function debounced() { + var time = now(), + isInvoking = shouldInvoke(time); + + lastArgs = arguments; + lastThis = this; + lastCallTime = time; + + if (isInvoking) { + if (timerId === undefined) { + return leadingEdge(lastCallTime); + } + if (maxing) { + // Handle invocations in a tight loop. + clearTimeout(timerId); + timerId = setTimeout(timerExpired, wait); + return invokeFunc(lastCallTime); + } + } + if (timerId === undefined) { + timerId = setTimeout(timerExpired, wait); + } + return result; + } + debounced.cancel = cancel; + debounced.flush = flush; + return debounced; + } + + /** + * Defers invoking the `func` until the current call stack has cleared. Any + * additional arguments are provided to `func` when it's invoked. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to defer. + * @param {...*} [args] The arguments to invoke `func` with. + * @returns {number} Returns the timer id. + * @example + * + * _.defer(function(text) { + * console.log(text); + * }, 'deferred'); + * // => Logs 'deferred' after one millisecond. + */ + var defer = baseRest(function(func, args) { + return baseDelay(func, 1, args); + }); + + /** + * Invokes `func` after `wait` milliseconds. Any additional arguments are + * provided to `func` when it's invoked. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to delay. + * @param {number} wait The number of milliseconds to delay invocation. + * @param {...*} [args] The arguments to invoke `func` with. + * @returns {number} Returns the timer id. + * @example + * + * _.delay(function(text) { + * console.log(text); + * }, 1000, 'later'); + * // => Logs 'later' after one second. + */ + var delay = baseRest(function(func, wait, args) { + return baseDelay(func, toNumber(wait) || 0, args); + }); + + /** + * Creates a function that invokes `func` with arguments reversed. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Function + * @param {Function} func The function to flip arguments for. + * @returns {Function} Returns the new flipped function. + * @example + * + * var flipped = _.flip(function() { + * return _.toArray(arguments); + * }); + * + * flipped('a', 'b', 'c', 'd'); + * // => ['d', 'c', 'b', 'a'] + */ + function flip(func) { + return createWrap(func, WRAP_FLIP_FLAG); + } + + /** + * Creates a function that memoizes the result of `func`. If `resolver` is + * provided, it determines the cache key for storing the result based on the + * arguments provided to the memoized function. By default, the first argument + * provided to the memoized function is used as the map cache key. The `func` + * is invoked with the `this` binding of the memoized function. + * + * **Note:** The cache is exposed as the `cache` property on the memoized + * function. Its creation may be customized by replacing the `_.memoize.Cache` + * constructor with one whose instances implement the + * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object) + * method interface of `clear`, `delete`, `get`, `has`, and `set`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to have its output memoized. + * @param {Function} [resolver] The function to resolve the cache key. + * @returns {Function} Returns the new memoized function. + * @example + * + * var object = { 'a': 1, 'b': 2 }; + * var other = { 'c': 3, 'd': 4 }; + * + * var values = _.memoize(_.values); + * values(object); + * // => [1, 2] + * + * values(other); + * // => [3, 4] + * + * object.a = 2; + * values(object); + * // => [1, 2] + * + * // Modify the result cache. + * values.cache.set(object, ['a', 'b']); + * values(object); + * // => ['a', 'b'] + * + * // Replace `_.memoize.Cache`. + * _.memoize.Cache = WeakMap; + */ + function memoize(func, resolver) { + if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) { + throw new TypeError(FUNC_ERROR_TEXT); + } + var memoized = function() { + var args = arguments, + key = resolver ? resolver.apply(this, args) : args[0], + cache = memoized.cache; + + if (cache.has(key)) { + return cache.get(key); + } + var result = func.apply(this, args); + memoized.cache = cache.set(key, result) || cache; + return result; + }; + memoized.cache = new (memoize.Cache || MapCache); + return memoized; + } + + // Expose `MapCache`. + memoize.Cache = MapCache; + + /** + * Creates a function that negates the result of the predicate `func`. The + * `func` predicate is invoked with the `this` binding and arguments of the + * created function. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Function + * @param {Function} predicate The predicate to negate. + * @returns {Function} Returns the new negated function. + * @example + * + * function isEven(n) { + * return n % 2 == 0; + * } + * + * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven)); + * // => [1, 3, 5] + */ + function negate(predicate) { + if (typeof predicate != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + return function() { + var args = arguments; + switch (args.length) { + case 0: return !predicate.call(this); + case 1: return !predicate.call(this, args[0]); + case 2: return !predicate.call(this, args[0], args[1]); + case 3: return !predicate.call(this, args[0], args[1], args[2]); + } + return !predicate.apply(this, args); + }; + } + + /** + * Creates a function that is restricted to invoking `func` once. Repeat calls + * to the function return the value of the first invocation. The `func` is + * invoked with the `this` binding and arguments of the created function. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * var initialize = _.once(createApplication); + * initialize(); + * initialize(); + * // => `createApplication` is invoked once + */ + function once(func) { + return before(2, func); + } + + /** + * Creates a function that invokes `func` with its arguments transformed. + * + * @static + * @since 4.0.0 + * @memberOf _ + * @category Function + * @param {Function} func The function to wrap. + * @param {...(Function|Function[])} [transforms=[_.identity]] + * The argument transforms. + * @returns {Function} Returns the new function. + * @example + * + * function doubled(n) { + * return n * 2; + * } + * + * function square(n) { + * return n * n; + * } + * + * var func = _.overArgs(function(x, y) { + * return [x, y]; + * }, [square, doubled]); + * + * func(9, 3); + * // => [81, 6] + * + * func(10, 5); + * // => [100, 10] + */ + var overArgs = castRest(function(func, transforms) { + transforms = (transforms.length == 1 && isArray(transforms[0])) + ? arrayMap(transforms[0], baseUnary(getIteratee())) + : arrayMap(baseFlatten(transforms, 1), baseUnary(getIteratee())); + + var funcsLength = transforms.length; + return baseRest(function(args) { + var index = -1, + length = nativeMin(args.length, funcsLength); + + while (++index < length) { + args[index] = transforms[index].call(this, args[index]); + } + return apply(func, this, args); + }); + }); + + /** + * Creates a function that invokes `func` with `partials` prepended to the + * arguments it receives. This method is like `_.bind` except it does **not** + * alter the `this` binding. + * + * The `_.partial.placeholder` value, which defaults to `_` in monolithic + * builds, may be used as a placeholder for partially applied arguments. + * + * **Note:** This method doesn't set the "length" property of partially + * applied functions. + * + * @static + * @memberOf _ + * @since 0.2.0 + * @category Function + * @param {Function} func The function to partially apply arguments to. + * @param {...*} [partials] The arguments to be partially applied. + * @returns {Function} Returns the new partially applied function. + * @example + * + * function greet(greeting, name) { + * return greeting + ' ' + name; + * } + * + * var sayHelloTo = _.partial(greet, 'hello'); + * sayHelloTo('fred'); + * // => 'hello fred' + * + * // Partially applied with placeholders. + * var greetFred = _.partial(greet, _, 'fred'); + * greetFred('hi'); + * // => 'hi fred' + */ + var partial = baseRest(function(func, partials) { + var holders = replaceHolders(partials, getHolder(partial)); + return createWrap(func, WRAP_PARTIAL_FLAG, undefined, partials, holders); + }); + + /** + * This method is like `_.partial` except that partially applied arguments + * are appended to the arguments it receives. + * + * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic + * builds, may be used as a placeholder for partially applied arguments. + * + * **Note:** This method doesn't set the "length" property of partially + * applied functions. + * + * @static + * @memberOf _ + * @since 1.0.0 + * @category Function + * @param {Function} func The function to partially apply arguments to. + * @param {...*} [partials] The arguments to be partially applied. + * @returns {Function} Returns the new partially applied function. + * @example + * + * function greet(greeting, name) { + * return greeting + ' ' + name; + * } + * + * var greetFred = _.partialRight(greet, 'fred'); + * greetFred('hi'); + * // => 'hi fred' + * + * // Partially applied with placeholders. + * var sayHelloTo = _.partialRight(greet, 'hello', _); + * sayHelloTo('fred'); + * // => 'hello fred' + */ + var partialRight = baseRest(function(func, partials) { + var holders = replaceHolders(partials, getHolder(partialRight)); + return createWrap(func, WRAP_PARTIAL_RIGHT_FLAG, undefined, partials, holders); + }); + + /** + * Creates a function that invokes `func` with arguments arranged according + * to the specified `indexes` where the argument value at the first index is + * provided as the first argument, the argument value at the second index is + * provided as the second argument, and so on. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Function + * @param {Function} func The function to rearrange arguments for. + * @param {...(number|number[])} indexes The arranged argument indexes. + * @returns {Function} Returns the new function. + * @example + * + * var rearged = _.rearg(function(a, b, c) { + * return [a, b, c]; + * }, [2, 0, 1]); + * + * rearged('b', 'c', 'a') + * // => ['a', 'b', 'c'] + */ + var rearg = flatRest(function(func, indexes) { + return createWrap(func, WRAP_REARG_FLAG, undefined, undefined, undefined, indexes); + }); + + /** + * Creates a function that invokes `func` with the `this` binding of the + * created function and arguments from `start` and beyond provided as + * an array. + * + * **Note:** This method is based on the + * [rest parameter](https://mdn.io/rest_parameters). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Function + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @returns {Function} Returns the new function. + * @example + * + * var say = _.rest(function(what, names) { + * return what + ' ' + _.initial(names).join(', ') + + * (_.size(names) > 1 ? ', & ' : '') + _.last(names); + * }); + * + * say('hello', 'fred', 'barney', 'pebbles'); + * // => 'hello fred, barney, & pebbles' + */ + function rest(func, start) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + start = start === undefined ? start : toInteger(start); + return baseRest(func, start); + } + + /** + * Creates a function that invokes `func` with the `this` binding of the + * create function and an array of arguments much like + * [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply). + * + * **Note:** This method is based on the + * [spread operator](https://mdn.io/spread_operator). + * + * @static + * @memberOf _ + * @since 3.2.0 + * @category Function + * @param {Function} func The function to spread arguments over. + * @param {number} [start=0] The start position of the spread. + * @returns {Function} Returns the new function. + * @example + * + * var say = _.spread(function(who, what) { + * return who + ' says ' + what; + * }); + * + * say(['fred', 'hello']); + * // => 'fred says hello' + * + * var numbers = Promise.all([ + * Promise.resolve(40), + * Promise.resolve(36) + * ]); + * + * numbers.then(_.spread(function(x, y) { + * return x + y; + * })); + * // => a Promise of 76 + */ + function spread(func, start) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + start = start == null ? 0 : nativeMax(toInteger(start), 0); + return baseRest(function(args) { + var array = args[start], + otherArgs = castSlice(args, 0, start); + + if (array) { + arrayPush(otherArgs, array); + } + return apply(func, this, otherArgs); + }); + } + + /** + * Creates a throttled function that only invokes `func` at most once per + * every `wait` milliseconds. The throttled function comes with a `cancel` + * method to cancel delayed `func` invocations and a `flush` method to + * immediately invoke them. Provide `options` to indicate whether `func` + * should be invoked on the leading and/or trailing edge of the `wait` + * timeout. The `func` is invoked with the last arguments provided to the + * throttled function. Subsequent calls to the throttled function return the + * result of the last `func` invocation. + * + * **Note:** If `leading` and `trailing` options are `true`, `func` is + * invoked on the trailing edge of the timeout only if the throttled function + * is invoked more than once during the `wait` timeout. + * + * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred + * until to the next tick, similar to `setTimeout` with a timeout of `0`. + * + * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) + * for details over the differences between `_.throttle` and `_.debounce`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to throttle. + * @param {number} [wait=0] The number of milliseconds to throttle invocations to. + * @param {Object} [options={}] The options object. + * @param {boolean} [options.leading=true] + * Specify invoking on the leading edge of the timeout. + * @param {boolean} [options.trailing=true] + * Specify invoking on the trailing edge of the timeout. + * @returns {Function} Returns the new throttled function. + * @example + * + * // Avoid excessively updating the position while scrolling. + * jQuery(window).on('scroll', _.throttle(updatePosition, 100)); + * + * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes. + * var throttled = _.throttle(renewToken, 300000, { 'trailing': false }); + * jQuery(element).on('click', throttled); + * + * // Cancel the trailing throttled invocation. + * jQuery(window).on('popstate', throttled.cancel); + */ + function throttle(func, wait, options) { + var leading = true, + trailing = true; + + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + if (isObject(options)) { + leading = 'leading' in options ? !!options.leading : leading; + trailing = 'trailing' in options ? !!options.trailing : trailing; + } + return debounce(func, wait, { + 'leading': leading, + 'maxWait': wait, + 'trailing': trailing + }); + } + + /** + * Creates a function that accepts up to one argument, ignoring any + * additional arguments. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Function + * @param {Function} func The function to cap arguments for. + * @returns {Function} Returns the new capped function. + * @example + * + * _.map(['6', '8', '10'], _.unary(parseInt)); + * // => [6, 8, 10] + */ + function unary(func) { + return ary(func, 1); + } + + /** + * Creates a function that provides `value` to `wrapper` as its first + * argument. Any additional arguments provided to the function are appended + * to those provided to the `wrapper`. The wrapper is invoked with the `this` + * binding of the created function. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {*} value The value to wrap. + * @param {Function} [wrapper=identity] The wrapper function. + * @returns {Function} Returns the new function. + * @example + * + * var p = _.wrap(_.escape, function(func, text) { + * return '

' + func(text) + '

'; + * }); + * + * p('fred, barney, & pebbles'); + * // => '

fred, barney, & pebbles

' + */ + function wrap(value, wrapper) { + return partial(castFunction(wrapper), value); + } + + /*------------------------------------------------------------------------*/ + + /** + * Casts `value` as an array if it's not one. + * + * @static + * @memberOf _ + * @since 4.4.0 + * @category Lang + * @param {*} value The value to inspect. + * @returns {Array} Returns the cast array. + * @example + * + * _.castArray(1); + * // => [1] + * + * _.castArray({ 'a': 1 }); + * // => [{ 'a': 1 }] + * + * _.castArray('abc'); + * // => ['abc'] + * + * _.castArray(null); + * // => [null] + * + * _.castArray(undefined); + * // => [undefined] + * + * _.castArray(); + * // => [] + * + * var array = [1, 2, 3]; + * console.log(_.castArray(array) === array); + * // => true + */ + function castArray() { + if (!arguments.length) { + return []; + } + var value = arguments[0]; + return isArray(value) ? value : [value]; + } + + /** + * Creates a shallow clone of `value`. + * + * **Note:** This method is loosely based on the + * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm) + * and supports cloning arrays, array buffers, booleans, date objects, maps, + * numbers, `Object` objects, regexes, sets, strings, symbols, and typed + * arrays. The own enumerable properties of `arguments` objects are cloned + * as plain objects. An empty object is returned for uncloneable values such + * as error objects, functions, DOM nodes, and WeakMaps. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to clone. + * @returns {*} Returns the cloned value. + * @see _.cloneDeep + * @example + * + * var objects = [{ 'a': 1 }, { 'b': 2 }]; + * + * var shallow = _.clone(objects); + * console.log(shallow[0] === objects[0]); + * // => true + */ + function clone(value) { + return baseClone(value, CLONE_SYMBOLS_FLAG); + } + + /** + * This method is like `_.clone` except that it accepts `customizer` which + * is invoked to produce the cloned value. If `customizer` returns `undefined`, + * cloning is handled by the method instead. The `customizer` is invoked with + * up to four arguments; (value [, index|key, object, stack]). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to clone. + * @param {Function} [customizer] The function to customize cloning. + * @returns {*} Returns the cloned value. + * @see _.cloneDeepWith + * @example + * + * function customizer(value) { + * if (_.isElement(value)) { + * return value.cloneNode(false); + * } + * } + * + * var el = _.cloneWith(document.body, customizer); + * + * console.log(el === document.body); + * // => false + * console.log(el.nodeName); + * // => 'BODY' + * console.log(el.childNodes.length); + * // => 0 + */ + function cloneWith(value, customizer) { + customizer = typeof customizer == 'function' ? customizer : undefined; + return baseClone(value, CLONE_SYMBOLS_FLAG, customizer); + } + + /** + * This method is like `_.clone` except that it recursively clones `value`. + * + * @static + * @memberOf _ + * @since 1.0.0 + * @category Lang + * @param {*} value The value to recursively clone. + * @returns {*} Returns the deep cloned value. + * @see _.clone + * @example + * + * var objects = [{ 'a': 1 }, { 'b': 2 }]; + * + * var deep = _.cloneDeep(objects); + * console.log(deep[0] === objects[0]); + * // => false + */ + function cloneDeep(value) { + return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG); + } + + /** + * This method is like `_.cloneWith` except that it recursively clones `value`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to recursively clone. + * @param {Function} [customizer] The function to customize cloning. + * @returns {*} Returns the deep cloned value. + * @see _.cloneWith + * @example + * + * function customizer(value) { + * if (_.isElement(value)) { + * return value.cloneNode(true); + * } + * } + * + * var el = _.cloneDeepWith(document.body, customizer); + * + * console.log(el === document.body); + * // => false + * console.log(el.nodeName); + * // => 'BODY' + * console.log(el.childNodes.length); + * // => 20 + */ + function cloneDeepWith(value, customizer) { + customizer = typeof customizer == 'function' ? customizer : undefined; + return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer); + } + + /** + * Checks if `object` conforms to `source` by invoking the predicate + * properties of `source` with the corresponding property values of `object`. + * + * **Note:** This method is equivalent to `_.conforms` when `source` is + * partially applied. + * + * @static + * @memberOf _ + * @since 4.14.0 + * @category Lang + * @param {Object} object The object to inspect. + * @param {Object} source The object of property predicates to conform to. + * @returns {boolean} Returns `true` if `object` conforms, else `false`. + * @example + * + * var object = { 'a': 1, 'b': 2 }; + * + * _.conformsTo(object, { 'b': function(n) { return n > 1; } }); + * // => true + * + * _.conformsTo(object, { 'b': function(n) { return n > 2; } }); + * // => false + */ + function conformsTo(object, source) { + return source == null || baseConformsTo(object, source, keys(source)); + } + + /** + * Performs a + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * comparison between two values to determine if they are equivalent. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + * @example + * + * var object = { 'a': 1 }; + * var other = { 'a': 1 }; + * + * _.eq(object, object); + * // => true + * + * _.eq(object, other); + * // => false + * + * _.eq('a', 'a'); + * // => true + * + * _.eq('a', Object('a')); + * // => false + * + * _.eq(NaN, NaN); + * // => true + */ + function eq(value, other) { + return value === other || (value !== value && other !== other); + } + + /** + * Checks if `value` is greater than `other`. + * + * @static + * @memberOf _ + * @since 3.9.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is greater than `other`, + * else `false`. + * @see _.lt + * @example + * + * _.gt(3, 1); + * // => true + * + * _.gt(3, 3); + * // => false + * + * _.gt(1, 3); + * // => false + */ + var gt = createRelationalOperation(baseGt); + + /** + * Checks if `value` is greater than or equal to `other`. + * + * @static + * @memberOf _ + * @since 3.9.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is greater than or equal to + * `other`, else `false`. + * @see _.lte + * @example + * + * _.gte(3, 1); + * // => true + * + * _.gte(3, 3); + * // => true + * + * _.gte(1, 3); + * // => false + */ + var gte = createRelationalOperation(function(value, other) { + return value >= other; + }); + + /** + * Checks if `value` is likely an `arguments` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an `arguments` object, + * else `false`. + * @example + * + * _.isArguments(function() { return arguments; }()); + * // => true + * + * _.isArguments([1, 2, 3]); + * // => false + */ + var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) { + return isObjectLike(value) && hasOwnProperty.call(value, 'callee') && + !propertyIsEnumerable.call(value, 'callee'); + }; + + /** + * Checks if `value` is classified as an `Array` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array, else `false`. + * @example + * + * _.isArray([1, 2, 3]); + * // => true + * + * _.isArray(document.body.children); + * // => false + * + * _.isArray('abc'); + * // => false + * + * _.isArray(_.noop); + * // => false + */ + var isArray = Array.isArray; + + /** + * Checks if `value` is classified as an `ArrayBuffer` object. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`. + * @example + * + * _.isArrayBuffer(new ArrayBuffer(2)); + * // => true + * + * _.isArrayBuffer(new Array(2)); + * // => false + */ + var isArrayBuffer = nodeIsArrayBuffer ? baseUnary(nodeIsArrayBuffer) : baseIsArrayBuffer; + + /** + * Checks if `value` is array-like. A value is considered array-like if it's + * not a function and has a `value.length` that's an integer greater than or + * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is array-like, else `false`. + * @example + * + * _.isArrayLike([1, 2, 3]); + * // => true + * + * _.isArrayLike(document.body.children); + * // => true + * + * _.isArrayLike('abc'); + * // => true + * + * _.isArrayLike(_.noop); + * // => false + */ + function isArrayLike(value) { + return value != null && isLength(value.length) && !isFunction(value); + } + + /** + * This method is like `_.isArrayLike` except that it also checks if `value` + * is an object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array-like object, + * else `false`. + * @example + * + * _.isArrayLikeObject([1, 2, 3]); + * // => true + * + * _.isArrayLikeObject(document.body.children); + * // => true + * + * _.isArrayLikeObject('abc'); + * // => false + * + * _.isArrayLikeObject(_.noop); + * // => false + */ + function isArrayLikeObject(value) { + return isObjectLike(value) && isArrayLike(value); + } + + /** + * Checks if `value` is classified as a boolean primitive or object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a boolean, else `false`. + * @example + * + * _.isBoolean(false); + * // => true + * + * _.isBoolean(null); + * // => false + */ + function isBoolean(value) { + return value === true || value === false || + (isObjectLike(value) && baseGetTag(value) == boolTag); + } + + /** + * Checks if `value` is a buffer. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a buffer, else `false`. + * @example + * + * _.isBuffer(new Buffer(2)); + * // => true + * + * _.isBuffer(new Uint8Array(2)); + * // => false + */ + var isBuffer = nativeIsBuffer || stubFalse; + + /** + * Checks if `value` is classified as a `Date` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a date object, else `false`. + * @example + * + * _.isDate(new Date); + * // => true + * + * _.isDate('Mon April 23 2012'); + * // => false + */ + var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate; + + /** + * Checks if `value` is likely a DOM element. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`. + * @example + * + * _.isElement(document.body); + * // => true + * + * _.isElement(''); + * // => false + */ + function isElement(value) { + return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value); + } + + /** + * Checks if `value` is an empty object, collection, map, or set. + * + * Objects are considered empty if they have no own enumerable string keyed + * properties. + * + * Array-like values such as `arguments` objects, arrays, buffers, strings, or + * jQuery-like collections are considered empty if they have a `length` of `0`. + * Similarly, maps and sets are considered empty if they have a `size` of `0`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is empty, else `false`. + * @example + * + * _.isEmpty(null); + * // => true + * + * _.isEmpty(true); + * // => true + * + * _.isEmpty(1); + * // => true + * + * _.isEmpty([1, 2, 3]); + * // => false + * + * _.isEmpty({ 'a': 1 }); + * // => false + */ + function isEmpty(value) { + if (value == null) { + return true; + } + if (isArrayLike(value) && + (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' || + isBuffer(value) || isTypedArray(value) || isArguments(value))) { + return !value.length; + } + var tag = getTag(value); + if (tag == mapTag || tag == setTag) { + return !value.size; + } + if (isPrototype(value)) { + return !baseKeys(value).length; + } + for (var key in value) { + if (hasOwnProperty.call(value, key)) { + return false; + } + } + return true; + } + + /** + * Performs a deep comparison between two values to determine if they are + * equivalent. + * + * **Note:** This method supports comparing arrays, array buffers, booleans, + * date objects, error objects, maps, numbers, `Object` objects, regexes, + * sets, strings, symbols, and typed arrays. `Object` objects are compared + * by their own, not inherited, enumerable properties. Functions and DOM + * nodes are compared by strict equality, i.e. `===`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + * @example + * + * var object = { 'a': 1 }; + * var other = { 'a': 1 }; + * + * _.isEqual(object, other); + * // => true + * + * object === other; + * // => false + */ + function isEqual(value, other) { + return baseIsEqual(value, other); + } + + /** + * This method is like `_.isEqual` except that it accepts `customizer` which + * is invoked to compare values. If `customizer` returns `undefined`, comparisons + * are handled by the method instead. The `customizer` is invoked with up to + * six arguments: (objValue, othValue [, index|key, object, other, stack]). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @param {Function} [customizer] The function to customize comparisons. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + * @example + * + * function isGreeting(value) { + * return /^h(?:i|ello)$/.test(value); + * } + * + * function customizer(objValue, othValue) { + * if (isGreeting(objValue) && isGreeting(othValue)) { + * return true; + * } + * } + * + * var array = ['hello', 'goodbye']; + * var other = ['hi', 'goodbye']; + * + * _.isEqualWith(array, other, customizer); + * // => true + */ + function isEqualWith(value, other, customizer) { + customizer = typeof customizer == 'function' ? customizer : undefined; + var result = customizer ? customizer(value, other) : undefined; + return result === undefined ? baseIsEqual(value, other, undefined, customizer) : !!result; + } + + /** + * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`, + * `SyntaxError`, `TypeError`, or `URIError` object. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an error object, else `false`. + * @example + * + * _.isError(new Error); + * // => true + * + * _.isError(Error); + * // => false + */ + function isError(value) { + if (!isObjectLike(value)) { + return false; + } + var tag = baseGetTag(value); + return tag == errorTag || tag == domExcTag || + (typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value)); + } + + /** + * Checks if `value` is a finite primitive number. + * + * **Note:** This method is based on + * [`Number.isFinite`](https://mdn.io/Number/isFinite). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a finite number, else `false`. + * @example + * + * _.isFinite(3); + * // => true + * + * _.isFinite(Number.MIN_VALUE); + * // => true + * + * _.isFinite(Infinity); + * // => false + * + * _.isFinite('3'); + * // => false + */ + function isFinite(value) { + return typeof value == 'number' && nativeIsFinite(value); + } + + /** + * Checks if `value` is classified as a `Function` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a function, else `false`. + * @example + * + * _.isFunction(_); + * // => true + * + * _.isFunction(/abc/); + * // => false + */ + function isFunction(value) { + if (!isObject(value)) { + return false; + } + // The use of `Object#toString` avoids issues with the `typeof` operator + // in Safari 9 which returns 'object' for typed arrays and other constructors. + var tag = baseGetTag(value); + return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag; + } + + /** + * Checks if `value` is an integer. + * + * **Note:** This method is based on + * [`Number.isInteger`](https://mdn.io/Number/isInteger). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an integer, else `false`. + * @example + * + * _.isInteger(3); + * // => true + * + * _.isInteger(Number.MIN_VALUE); + * // => false + * + * _.isInteger(Infinity); + * // => false + * + * _.isInteger('3'); + * // => false + */ + function isInteger(value) { + return typeof value == 'number' && value == toInteger(value); + } + + /** + * Checks if `value` is a valid array-like length. + * + * **Note:** This method is loosely based on + * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. + * @example + * + * _.isLength(3); + * // => true + * + * _.isLength(Number.MIN_VALUE); + * // => false + * + * _.isLength(Infinity); + * // => false + * + * _.isLength('3'); + * // => false + */ + function isLength(value) { + return typeof value == 'number' && + value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; + } + + /** + * Checks if `value` is the + * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) + * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an object, else `false`. + * @example + * + * _.isObject({}); + * // => true + * + * _.isObject([1, 2, 3]); + * // => true + * + * _.isObject(_.noop); + * // => true + * + * _.isObject(null); + * // => false + */ + function isObject(value) { + var type = typeof value; + return value != null && (type == 'object' || type == 'function'); + } + + /** + * Checks if `value` is object-like. A value is object-like if it's not `null` + * and has a `typeof` result of "object". + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + * @example + * + * _.isObjectLike({}); + * // => true + * + * _.isObjectLike([1, 2, 3]); + * // => true + * + * _.isObjectLike(_.noop); + * // => false + * + * _.isObjectLike(null); + * // => false + */ + function isObjectLike(value) { + return value != null && typeof value == 'object'; + } + + /** + * Checks if `value` is classified as a `Map` object. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a map, else `false`. + * @example + * + * _.isMap(new Map); + * // => true + * + * _.isMap(new WeakMap); + * // => false + */ + var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap; + + /** + * Performs a partial deep comparison between `object` and `source` to + * determine if `object` contains equivalent property values. + * + * **Note:** This method is equivalent to `_.matches` when `source` is + * partially applied. + * + * Partial comparisons will match empty array and empty object `source` + * values against any array or object value, respectively. See `_.isEqual` + * for a list of supported value comparisons. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Lang + * @param {Object} object The object to inspect. + * @param {Object} source The object of property values to match. + * @returns {boolean} Returns `true` if `object` is a match, else `false`. + * @example + * + * var object = { 'a': 1, 'b': 2 }; + * + * _.isMatch(object, { 'b': 2 }); + * // => true + * + * _.isMatch(object, { 'b': 1 }); + * // => false + */ + function isMatch(object, source) { + return object === source || baseIsMatch(object, source, getMatchData(source)); + } + + /** + * This method is like `_.isMatch` except that it accepts `customizer` which + * is invoked to compare values. If `customizer` returns `undefined`, comparisons + * are handled by the method instead. The `customizer` is invoked with five + * arguments: (objValue, srcValue, index|key, object, source). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {Object} object The object to inspect. + * @param {Object} source The object of property values to match. + * @param {Function} [customizer] The function to customize comparisons. + * @returns {boolean} Returns `true` if `object` is a match, else `false`. + * @example + * + * function isGreeting(value) { + * return /^h(?:i|ello)$/.test(value); + * } + * + * function customizer(objValue, srcValue) { + * if (isGreeting(objValue) && isGreeting(srcValue)) { + * return true; + * } + * } + * + * var object = { 'greeting': 'hello' }; + * var source = { 'greeting': 'hi' }; + * + * _.isMatchWith(object, source, customizer); + * // => true + */ + function isMatchWith(object, source, customizer) { + customizer = typeof customizer == 'function' ? customizer : undefined; + return baseIsMatch(object, source, getMatchData(source), customizer); + } + + /** + * Checks if `value` is `NaN`. + * + * **Note:** This method is based on + * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as + * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for + * `undefined` and other non-number values. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. + * @example + * + * _.isNaN(NaN); + * // => true + * + * _.isNaN(new Number(NaN)); + * // => true + * + * isNaN(undefined); + * // => true + * + * _.isNaN(undefined); + * // => false + */ + function isNaN(value) { + // An `NaN` primitive is the only value that is not equal to itself. + // Perform the `toStringTag` check first to avoid errors with some + // ActiveX objects in IE. + return isNumber(value) && value != +value; + } + + /** + * Checks if `value` is a pristine native function. + * + * **Note:** This method can't reliably detect native functions in the presence + * of the core-js package because core-js circumvents this kind of detection. + * Despite multiple requests, the core-js maintainer has made it clear: any + * attempt to fix the detection will be obstructed. As a result, we're left + * with little choice but to throw an error. Unfortunately, this also affects + * packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill), + * which rely on core-js. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a native function, + * else `false`. + * @example + * + * _.isNative(Array.prototype.push); + * // => true + * + * _.isNative(_); + * // => false + */ + function isNative(value) { + if (isMaskable(value)) { + throw new Error(CORE_ERROR_TEXT); + } + return baseIsNative(value); + } + + /** + * Checks if `value` is `null`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `null`, else `false`. + * @example + * + * _.isNull(null); + * // => true + * + * _.isNull(void 0); + * // => false + */ + function isNull(value) { + return value === null; + } + + /** + * Checks if `value` is `null` or `undefined`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is nullish, else `false`. + * @example + * + * _.isNil(null); + * // => true + * + * _.isNil(void 0); + * // => true + * + * _.isNil(NaN); + * // => false + */ + function isNil(value) { + return value == null; + } + + /** + * Checks if `value` is classified as a `Number` primitive or object. + * + * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are + * classified as numbers, use the `_.isFinite` method. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a number, else `false`. + * @example + * + * _.isNumber(3); + * // => true + * + * _.isNumber(Number.MIN_VALUE); + * // => true + * + * _.isNumber(Infinity); + * // => true + * + * _.isNumber('3'); + * // => false + */ + function isNumber(value) { + return typeof value == 'number' || + (isObjectLike(value) && baseGetTag(value) == numberTag); + } + + /** + * Checks if `value` is a plain object, that is, an object created by the + * `Object` constructor or one with a `[[Prototype]]` of `null`. + * + * @static + * @memberOf _ + * @since 0.8.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. + * @example + * + * function Foo() { + * this.a = 1; + * } + * + * _.isPlainObject(new Foo); + * // => false + * + * _.isPlainObject([1, 2, 3]); + * // => false + * + * _.isPlainObject({ 'x': 0, 'y': 0 }); + * // => true + * + * _.isPlainObject(Object.create(null)); + * // => true + */ + function isPlainObject(value) { + if (!isObjectLike(value) || baseGetTag(value) != objectTag) { + return false; + } + var proto = getPrototype(value); + if (proto === null) { + return true; + } + var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor; + return typeof Ctor == 'function' && Ctor instanceof Ctor && + funcToString.call(Ctor) == objectCtorString; + } + + /** + * Checks if `value` is classified as a `RegExp` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. + * @example + * + * _.isRegExp(/abc/); + * // => true + * + * _.isRegExp('/abc/'); + * // => false + */ + var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp; + + /** + * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754 + * double precision number which isn't the result of a rounded unsafe integer. + * + * **Note:** This method is based on + * [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`. + * @example + * + * _.isSafeInteger(3); + * // => true + * + * _.isSafeInteger(Number.MIN_VALUE); + * // => false + * + * _.isSafeInteger(Infinity); + * // => false + * + * _.isSafeInteger('3'); + * // => false + */ + function isSafeInteger(value) { + return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER; + } + + /** + * Checks if `value` is classified as a `Set` object. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a set, else `false`. + * @example + * + * _.isSet(new Set); + * // => true + * + * _.isSet(new WeakSet); + * // => false + */ + var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet; + + /** + * Checks if `value` is classified as a `String` primitive or object. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a string, else `false`. + * @example + * + * _.isString('abc'); + * // => true + * + * _.isString(1); + * // => false + */ + function isString(value) { + return typeof value == 'string' || + (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag); + } + + /** + * Checks if `value` is classified as a `Symbol` primitive or object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. + * @example + * + * _.isSymbol(Symbol.iterator); + * // => true + * + * _.isSymbol('abc'); + * // => false + */ + function isSymbol(value) { + return typeof value == 'symbol' || + (isObjectLike(value) && baseGetTag(value) == symbolTag); + } + + /** + * Checks if `value` is classified as a typed array. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. + * @example + * + * _.isTypedArray(new Uint8Array); + * // => true + * + * _.isTypedArray([]); + * // => false + */ + var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray; + + /** + * Checks if `value` is `undefined`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`. + * @example + * + * _.isUndefined(void 0); + * // => true + * + * _.isUndefined(null); + * // => false + */ + function isUndefined(value) { + return value === undefined; + } + + /** + * Checks if `value` is classified as a `WeakMap` object. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a weak map, else `false`. + * @example + * + * _.isWeakMap(new WeakMap); + * // => true + * + * _.isWeakMap(new Map); + * // => false + */ + function isWeakMap(value) { + return isObjectLike(value) && getTag(value) == weakMapTag; + } + + /** + * Checks if `value` is classified as a `WeakSet` object. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a weak set, else `false`. + * @example + * + * _.isWeakSet(new WeakSet); + * // => true + * + * _.isWeakSet(new Set); + * // => false + */ + function isWeakSet(value) { + return isObjectLike(value) && baseGetTag(value) == weakSetTag; + } + + /** + * Checks if `value` is less than `other`. + * + * @static + * @memberOf _ + * @since 3.9.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is less than `other`, + * else `false`. + * @see _.gt + * @example + * + * _.lt(1, 3); + * // => true + * + * _.lt(3, 3); + * // => false + * + * _.lt(3, 1); + * // => false + */ + var lt = createRelationalOperation(baseLt); + + /** + * Checks if `value` is less than or equal to `other`. + * + * @static + * @memberOf _ + * @since 3.9.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is less than or equal to + * `other`, else `false`. + * @see _.gte + * @example + * + * _.lte(1, 3); + * // => true + * + * _.lte(3, 3); + * // => true + * + * _.lte(3, 1); + * // => false + */ + var lte = createRelationalOperation(function(value, other) { + return value <= other; + }); + + /** + * Converts `value` to an array. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to convert. + * @returns {Array} Returns the converted array. + * @example + * + * _.toArray({ 'a': 1, 'b': 2 }); + * // => [1, 2] + * + * _.toArray('abc'); + * // => ['a', 'b', 'c'] + * + * _.toArray(1); + * // => [] + * + * _.toArray(null); + * // => [] + */ + function toArray(value) { + if (!value) { + return []; + } + if (isArrayLike(value)) { + return isString(value) ? stringToArray(value) : copyArray(value); + } + if (symIterator && value[symIterator]) { + return iteratorToArray(value[symIterator]()); + } + var tag = getTag(value), + func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values); + + return func(value); + } + + /** + * Converts `value` to a finite number. + * + * @static + * @memberOf _ + * @since 4.12.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted number. + * @example + * + * _.toFinite(3.2); + * // => 3.2 + * + * _.toFinite(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toFinite(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toFinite('3.2'); + * // => 3.2 + */ + function toFinite(value) { + if (!value) { + return value === 0 ? value : 0; + } + value = toNumber(value); + if (value === INFINITY || value === -INFINITY) { + var sign = (value < 0 ? -1 : 1); + return sign * MAX_INTEGER; + } + return value === value ? value : 0; + } + + /** + * Converts `value` to an integer. + * + * **Note:** This method is loosely based on + * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted integer. + * @example + * + * _.toInteger(3.2); + * // => 3 + * + * _.toInteger(Number.MIN_VALUE); + * // => 0 + * + * _.toInteger(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toInteger('3.2'); + * // => 3 + */ + function toInteger(value) { + var result = toFinite(value), + remainder = result % 1; + + return result === result ? (remainder ? result - remainder : result) : 0; + } + + /** + * Converts `value` to an integer suitable for use as the length of an + * array-like object. + * + * **Note:** This method is based on + * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted integer. + * @example + * + * _.toLength(3.2); + * // => 3 + * + * _.toLength(Number.MIN_VALUE); + * // => 0 + * + * _.toLength(Infinity); + * // => 4294967295 + * + * _.toLength('3.2'); + * // => 3 + */ + function toLength(value) { + return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0; + } + + /** + * Converts `value` to a number. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to process. + * @returns {number} Returns the number. + * @example + * + * _.toNumber(3.2); + * // => 3.2 + * + * _.toNumber(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toNumber(Infinity); + * // => Infinity + * + * _.toNumber('3.2'); + * // => 3.2 + */ + function toNumber(value) { + if (typeof value == 'number') { + return value; + } + if (isSymbol(value)) { + return NAN; + } + if (isObject(value)) { + var other = typeof value.valueOf == 'function' ? value.valueOf() : value; + value = isObject(other) ? (other + '') : other; + } + if (typeof value != 'string') { + return value === 0 ? value : +value; + } + value = baseTrim(value); + var isBinary = reIsBinary.test(value); + return (isBinary || reIsOctal.test(value)) + ? freeParseInt(value.slice(2), isBinary ? 2 : 8) + : (reIsBadHex.test(value) ? NAN : +value); + } + + /** + * Converts `value` to a plain object flattening inherited enumerable string + * keyed properties of `value` to own properties of the plain object. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {Object} Returns the converted plain object. + * @example + * + * function Foo() { + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.assign({ 'a': 1 }, new Foo); + * // => { 'a': 1, 'b': 2 } + * + * _.assign({ 'a': 1 }, _.toPlainObject(new Foo)); + * // => { 'a': 1, 'b': 2, 'c': 3 } + */ + function toPlainObject(value) { + return copyObject(value, keysIn(value)); + } + + /** + * Converts `value` to a safe integer. A safe integer can be compared and + * represented correctly. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted integer. + * @example + * + * _.toSafeInteger(3.2); + * // => 3 + * + * _.toSafeInteger(Number.MIN_VALUE); + * // => 0 + * + * _.toSafeInteger(Infinity); + * // => 9007199254740991 + * + * _.toSafeInteger('3.2'); + * // => 3 + */ + function toSafeInteger(value) { + return value + ? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER) + : (value === 0 ? value : 0); + } + + /** + * Converts `value` to a string. An empty string is returned for `null` + * and `undefined` values. The sign of `-0` is preserved. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {string} Returns the converted string. + * @example + * + * _.toString(null); + * // => '' + * + * _.toString(-0); + * // => '-0' + * + * _.toString([1, 2, 3]); + * // => '1,2,3' + */ + function toString(value) { + return value == null ? '' : baseToString(value); + } + + /*------------------------------------------------------------------------*/ + + /** + * Assigns own enumerable string keyed properties of source objects to the + * destination object. Source objects are applied from left to right. + * Subsequent sources overwrite property assignments of previous sources. + * + * **Note:** This method mutates `object` and is loosely based on + * [`Object.assign`](https://mdn.io/Object/assign). + * + * @static + * @memberOf _ + * @since 0.10.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.assignIn + * @example + * + * function Foo() { + * this.a = 1; + * } + * + * function Bar() { + * this.c = 3; + * } + * + * Foo.prototype.b = 2; + * Bar.prototype.d = 4; + * + * _.assign({ 'a': 0 }, new Foo, new Bar); + * // => { 'a': 1, 'c': 3 } + */ + var assign = createAssigner(function(object, source) { + if (isPrototype(source) || isArrayLike(source)) { + copyObject(source, keys(source), object); + return; + } + for (var key in source) { + if (hasOwnProperty.call(source, key)) { + assignValue(object, key, source[key]); + } + } + }); + + /** + * This method is like `_.assign` except that it iterates over own and + * inherited source properties. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @alias extend + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.assign + * @example + * + * function Foo() { + * this.a = 1; + * } + * + * function Bar() { + * this.c = 3; + * } + * + * Foo.prototype.b = 2; + * Bar.prototype.d = 4; + * + * _.assignIn({ 'a': 0 }, new Foo, new Bar); + * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 } + */ + var assignIn = createAssigner(function(object, source) { + copyObject(source, keysIn(source), object); + }); + + /** + * This method is like `_.assignIn` except that it accepts `customizer` + * which is invoked to produce the assigned values. If `customizer` returns + * `undefined`, assignment is handled by the method instead. The `customizer` + * is invoked with five arguments: (objValue, srcValue, key, object, source). + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @alias extendWith + * @category Object + * @param {Object} object The destination object. + * @param {...Object} sources The source objects. + * @param {Function} [customizer] The function to customize assigned values. + * @returns {Object} Returns `object`. + * @see _.assignWith + * @example + * + * function customizer(objValue, srcValue) { + * return _.isUndefined(objValue) ? srcValue : objValue; + * } + * + * var defaults = _.partialRight(_.assignInWith, customizer); + * + * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); + * // => { 'a': 1, 'b': 2 } + */ + var assignInWith = createAssigner(function(object, source, srcIndex, customizer) { + copyObject(source, keysIn(source), object, customizer); + }); + + /** + * This method is like `_.assign` except that it accepts `customizer` + * which is invoked to produce the assigned values. If `customizer` returns + * `undefined`, assignment is handled by the method instead. The `customizer` + * is invoked with five arguments: (objValue, srcValue, key, object, source). + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} sources The source objects. + * @param {Function} [customizer] The function to customize assigned values. + * @returns {Object} Returns `object`. + * @see _.assignInWith + * @example + * + * function customizer(objValue, srcValue) { + * return _.isUndefined(objValue) ? srcValue : objValue; + * } + * + * var defaults = _.partialRight(_.assignWith, customizer); + * + * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); + * // => { 'a': 1, 'b': 2 } + */ + var assignWith = createAssigner(function(object, source, srcIndex, customizer) { + copyObject(source, keys(source), object, customizer); + }); + + /** + * Creates an array of values corresponding to `paths` of `object`. + * + * @static + * @memberOf _ + * @since 1.0.0 + * @category Object + * @param {Object} object The object to iterate over. + * @param {...(string|string[])} [paths] The property paths to pick. + * @returns {Array} Returns the picked values. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; + * + * _.at(object, ['a[0].b.c', 'a[1]']); + * // => [3, 4] + */ + var at = flatRest(baseAt); + + /** + * Creates an object that inherits from the `prototype` object. If a + * `properties` object is given, its own enumerable string keyed properties + * are assigned to the created object. + * + * @static + * @memberOf _ + * @since 2.3.0 + * @category Object + * @param {Object} prototype The object to inherit from. + * @param {Object} [properties] The properties to assign to the object. + * @returns {Object} Returns the new object. + * @example + * + * function Shape() { + * this.x = 0; + * this.y = 0; + * } + * + * function Circle() { + * Shape.call(this); + * } + * + * Circle.prototype = _.create(Shape.prototype, { + * 'constructor': Circle + * }); + * + * var circle = new Circle; + * circle instanceof Circle; + * // => true + * + * circle instanceof Shape; + * // => true + */ + function create(prototype, properties) { + var result = baseCreate(prototype); + return properties == null ? result : baseAssign(result, properties); + } + + /** + * Assigns own and inherited enumerable string keyed properties of source + * objects to the destination object for all destination properties that + * resolve to `undefined`. Source objects are applied from left to right. + * Once a property is set, additional values of the same property are ignored. + * + * **Note:** This method mutates `object`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.defaultsDeep + * @example + * + * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); + * // => { 'a': 1, 'b': 2 } + */ + var defaults = baseRest(function(object, sources) { + object = Object(object); + + var index = -1; + var length = sources.length; + var guard = length > 2 ? sources[2] : undefined; + + if (guard && isIterateeCall(sources[0], sources[1], guard)) { + length = 1; + } + + while (++index < length) { + var source = sources[index]; + var props = keysIn(source); + var propsIndex = -1; + var propsLength = props.length; + + while (++propsIndex < propsLength) { + var key = props[propsIndex]; + var value = object[key]; + + if (value === undefined || + (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) { + object[key] = source[key]; + } + } + } + + return object; + }); + + /** + * This method is like `_.defaults` except that it recursively assigns + * default properties. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 3.10.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.defaults + * @example + * + * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } }); + * // => { 'a': { 'b': 2, 'c': 3 } } + */ + var defaultsDeep = baseRest(function(args) { + args.push(undefined, customDefaultsMerge); + return apply(mergeWith, undefined, args); + }); + + /** + * This method is like `_.find` except that it returns the key of the first + * element `predicate` returns truthy for instead of the element itself. + * + * @static + * @memberOf _ + * @since 1.1.0 + * @category Object + * @param {Object} object The object to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {string|undefined} Returns the key of the matched element, + * else `undefined`. + * @example + * + * var users = { + * 'barney': { 'age': 36, 'active': true }, + * 'fred': { 'age': 40, 'active': false }, + * 'pebbles': { 'age': 1, 'active': true } + * }; + * + * _.findKey(users, function(o) { return o.age < 40; }); + * // => 'barney' (iteration order is not guaranteed) + * + * // The `_.matches` iteratee shorthand. + * _.findKey(users, { 'age': 1, 'active': true }); + * // => 'pebbles' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findKey(users, ['active', false]); + * // => 'fred' + * + * // The `_.property` iteratee shorthand. + * _.findKey(users, 'active'); + * // => 'barney' + */ + function findKey(object, predicate) { + return baseFindKey(object, getIteratee(predicate, 3), baseForOwn); + } + + /** + * This method is like `_.findKey` except that it iterates over elements of + * a collection in the opposite order. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Object + * @param {Object} object The object to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {string|undefined} Returns the key of the matched element, + * else `undefined`. + * @example + * + * var users = { + * 'barney': { 'age': 36, 'active': true }, + * 'fred': { 'age': 40, 'active': false }, + * 'pebbles': { 'age': 1, 'active': true } + * }; + * + * _.findLastKey(users, function(o) { return o.age < 40; }); + * // => returns 'pebbles' assuming `_.findKey` returns 'barney' + * + * // The `_.matches` iteratee shorthand. + * _.findLastKey(users, { 'age': 36, 'active': true }); + * // => 'barney' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findLastKey(users, ['active', false]); + * // => 'fred' + * + * // The `_.property` iteratee shorthand. + * _.findLastKey(users, 'active'); + * // => 'pebbles' + */ + function findLastKey(object, predicate) { + return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight); + } + + /** + * Iterates over own and inherited enumerable string keyed properties of an + * object and invokes `iteratee` for each property. The iteratee is invoked + * with three arguments: (value, key, object). Iteratee functions may exit + * iteration early by explicitly returning `false`. + * + * @static + * @memberOf _ + * @since 0.3.0 + * @category Object + * @param {Object} object The object to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Object} Returns `object`. + * @see _.forInRight + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.forIn(new Foo, function(value, key) { + * console.log(key); + * }); + * // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed). + */ + function forIn(object, iteratee) { + return object == null + ? object + : baseFor(object, getIteratee(iteratee, 3), keysIn); + } + + /** + * This method is like `_.forIn` except that it iterates over properties of + * `object` in the opposite order. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Object + * @param {Object} object The object to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Object} Returns `object`. + * @see _.forIn + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.forInRight(new Foo, function(value, key) { + * console.log(key); + * }); + * // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'. + */ + function forInRight(object, iteratee) { + return object == null + ? object + : baseForRight(object, getIteratee(iteratee, 3), keysIn); + } + + /** + * Iterates over own enumerable string keyed properties of an object and + * invokes `iteratee` for each property. The iteratee is invoked with three + * arguments: (value, key, object). Iteratee functions may exit iteration + * early by explicitly returning `false`. + * + * @static + * @memberOf _ + * @since 0.3.0 + * @category Object + * @param {Object} object The object to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Object} Returns `object`. + * @see _.forOwnRight + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.forOwn(new Foo, function(value, key) { + * console.log(key); + * }); + * // => Logs 'a' then 'b' (iteration order is not guaranteed). + */ + function forOwn(object, iteratee) { + return object && baseForOwn(object, getIteratee(iteratee, 3)); + } + + /** + * This method is like `_.forOwn` except that it iterates over properties of + * `object` in the opposite order. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Object + * @param {Object} object The object to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Object} Returns `object`. + * @see _.forOwn + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.forOwnRight(new Foo, function(value, key) { + * console.log(key); + * }); + * // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'. + */ + function forOwnRight(object, iteratee) { + return object && baseForOwnRight(object, getIteratee(iteratee, 3)); + } + + /** + * Creates an array of function property names from own enumerable properties + * of `object`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to inspect. + * @returns {Array} Returns the function names. + * @see _.functionsIn + * @example + * + * function Foo() { + * this.a = _.constant('a'); + * this.b = _.constant('b'); + * } + * + * Foo.prototype.c = _.constant('c'); + * + * _.functions(new Foo); + * // => ['a', 'b'] + */ + function functions(object) { + return object == null ? [] : baseFunctions(object, keys(object)); + } + + /** + * Creates an array of function property names from own and inherited + * enumerable properties of `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The object to inspect. + * @returns {Array} Returns the function names. + * @see _.functions + * @example + * + * function Foo() { + * this.a = _.constant('a'); + * this.b = _.constant('b'); + * } + * + * Foo.prototype.c = _.constant('c'); + * + * _.functionsIn(new Foo); + * // => ['a', 'b', 'c'] + */ + function functionsIn(object) { + return object == null ? [] : baseFunctions(object, keysIn(object)); + } + + /** + * Gets the value at `path` of `object`. If the resolved value is + * `undefined`, the `defaultValue` is returned in its place. + * + * @static + * @memberOf _ + * @since 3.7.0 + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to get. + * @param {*} [defaultValue] The value returned for `undefined` resolved values. + * @returns {*} Returns the resolved value. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 3 } }] }; + * + * _.get(object, 'a[0].b.c'); + * // => 3 + * + * _.get(object, ['a', '0', 'b', 'c']); + * // => 3 + * + * _.get(object, 'a.b.c', 'default'); + * // => 'default' + */ + function get(object, path, defaultValue) { + var result = object == null ? undefined : baseGet(object, path); + return result === undefined ? defaultValue : result; + } + + /** + * Checks if `path` is a direct property of `object`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + * @example + * + * var object = { 'a': { 'b': 2 } }; + * var other = _.create({ 'a': _.create({ 'b': 2 }) }); + * + * _.has(object, 'a'); + * // => true + * + * _.has(object, 'a.b'); + * // => true + * + * _.has(object, ['a', 'b']); + * // => true + * + * _.has(other, 'a'); + * // => false + */ + function has(object, path) { + return object != null && hasPath(object, path, baseHas); + } + + /** + * Checks if `path` is a direct or inherited property of `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + * @example + * + * var object = _.create({ 'a': _.create({ 'b': 2 }) }); + * + * _.hasIn(object, 'a'); + * // => true + * + * _.hasIn(object, 'a.b'); + * // => true + * + * _.hasIn(object, ['a', 'b']); + * // => true + * + * _.hasIn(object, 'b'); + * // => false + */ + function hasIn(object, path) { + return object != null && hasPath(object, path, baseHasIn); + } + + /** + * Creates an object composed of the inverted keys and values of `object`. + * If `object` contains duplicate values, subsequent values overwrite + * property assignments of previous values. + * + * @static + * @memberOf _ + * @since 0.7.0 + * @category Object + * @param {Object} object The object to invert. + * @returns {Object} Returns the new inverted object. + * @example + * + * var object = { 'a': 1, 'b': 2, 'c': 1 }; + * + * _.invert(object); + * // => { '1': 'c', '2': 'b' } + */ + var invert = createInverter(function(result, value, key) { + if (value != null && + typeof value.toString != 'function') { + value = nativeObjectToString.call(value); + } + + result[value] = key; + }, constant(identity)); + + /** + * This method is like `_.invert` except that the inverted object is generated + * from the results of running each element of `object` thru `iteratee`. The + * corresponding inverted value of each inverted key is an array of keys + * responsible for generating the inverted value. The iteratee is invoked + * with one argument: (value). + * + * @static + * @memberOf _ + * @since 4.1.0 + * @category Object + * @param {Object} object The object to invert. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Object} Returns the new inverted object. + * @example + * + * var object = { 'a': 1, 'b': 2, 'c': 1 }; + * + * _.invertBy(object); + * // => { '1': ['a', 'c'], '2': ['b'] } + * + * _.invertBy(object, function(value) { + * return 'group' + value; + * }); + * // => { 'group1': ['a', 'c'], 'group2': ['b'] } + */ + var invertBy = createInverter(function(result, value, key) { + if (value != null && + typeof value.toString != 'function') { + value = nativeObjectToString.call(value); + } + + if (hasOwnProperty.call(result, value)) { + result[value].push(key); + } else { + result[value] = [key]; + } + }, getIteratee); + + /** + * Invokes the method at `path` of `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path of the method to invoke. + * @param {...*} [args] The arguments to invoke the method with. + * @returns {*} Returns the result of the invoked method. + * @example + * + * var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] }; + * + * _.invoke(object, 'a[0].b.c.slice', 1, 3); + * // => [2, 3] + */ + var invoke = baseRest(baseInvoke); + + /** + * Creates an array of the own enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. See the + * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) + * for more details. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keys(new Foo); + * // => ['a', 'b'] (iteration order is not guaranteed) + * + * _.keys('hi'); + * // => ['0', '1'] + */ + function keys(object) { + return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object); + } + + /** + * Creates an array of the own and inherited enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keysIn(new Foo); + * // => ['a', 'b', 'c'] (iteration order is not guaranteed) + */ + function keysIn(object) { + return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object); + } + + /** + * The opposite of `_.mapValues`; this method creates an object with the + * same values as `object` and keys generated by running each own enumerable + * string keyed property of `object` thru `iteratee`. The iteratee is invoked + * with three arguments: (value, key, object). + * + * @static + * @memberOf _ + * @since 3.8.0 + * @category Object + * @param {Object} object The object to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Object} Returns the new mapped object. + * @see _.mapValues + * @example + * + * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) { + * return key + value; + * }); + * // => { 'a1': 1, 'b2': 2 } + */ + function mapKeys(object, iteratee) { + var result = {}; + iteratee = getIteratee(iteratee, 3); + + baseForOwn(object, function(value, key, object) { + baseAssignValue(result, iteratee(value, key, object), value); + }); + return result; + } + + /** + * Creates an object with the same keys as `object` and values generated + * by running each own enumerable string keyed property of `object` thru + * `iteratee`. The iteratee is invoked with three arguments: + * (value, key, object). + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Object + * @param {Object} object The object to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Object} Returns the new mapped object. + * @see _.mapKeys + * @example + * + * var users = { + * 'fred': { 'user': 'fred', 'age': 40 }, + * 'pebbles': { 'user': 'pebbles', 'age': 1 } + * }; + * + * _.mapValues(users, function(o) { return o.age; }); + * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed) + * + * // The `_.property` iteratee shorthand. + * _.mapValues(users, 'age'); + * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed) + */ + function mapValues(object, iteratee) { + var result = {}; + iteratee = getIteratee(iteratee, 3); + + baseForOwn(object, function(value, key, object) { + baseAssignValue(result, key, iteratee(value, key, object)); + }); + return result; + } + + /** + * This method is like `_.assign` except that it recursively merges own and + * inherited enumerable string keyed properties of source objects into the + * destination object. Source properties that resolve to `undefined` are + * skipped if a destination value exists. Array and plain object properties + * are merged recursively. Other objects and value types are overridden by + * assignment. Source objects are applied from left to right. Subsequent + * sources overwrite property assignments of previous sources. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @example + * + * var object = { + * 'a': [{ 'b': 2 }, { 'd': 4 }] + * }; + * + * var other = { + * 'a': [{ 'c': 3 }, { 'e': 5 }] + * }; + * + * _.merge(object, other); + * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] } + */ + var merge = createAssigner(function(object, source, srcIndex) { + baseMerge(object, source, srcIndex); + }); + + /** + * This method is like `_.merge` except that it accepts `customizer` which + * is invoked to produce the merged values of the destination and source + * properties. If `customizer` returns `undefined`, merging is handled by the + * method instead. The `customizer` is invoked with six arguments: + * (objValue, srcValue, key, object, source, stack). + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} sources The source objects. + * @param {Function} customizer The function to customize assigned values. + * @returns {Object} Returns `object`. + * @example + * + * function customizer(objValue, srcValue) { + * if (_.isArray(objValue)) { + * return objValue.concat(srcValue); + * } + * } + * + * var object = { 'a': [1], 'b': [2] }; + * var other = { 'a': [3], 'b': [4] }; + * + * _.mergeWith(object, other, customizer); + * // => { 'a': [1, 3], 'b': [2, 4] } + */ + var mergeWith = createAssigner(function(object, source, srcIndex, customizer) { + baseMerge(object, source, srcIndex, customizer); + }); + + /** + * The opposite of `_.pick`; this method creates an object composed of the + * own and inherited enumerable property paths of `object` that are not omitted. + * + * **Note:** This method is considerably slower than `_.pick`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The source object. + * @param {...(string|string[])} [paths] The property paths to omit. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.omit(object, ['a', 'c']); + * // => { 'b': '2' } + */ + var omit = flatRest(function(object, paths) { + var result = {}; + if (object == null) { + return result; + } + var isDeep = false; + paths = arrayMap(paths, function(path) { + path = castPath(path, object); + isDeep || (isDeep = path.length > 1); + return path; + }); + copyObject(object, getAllKeysIn(object), result); + if (isDeep) { + result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone); + } + var length = paths.length; + while (length--) { + baseUnset(result, paths[length]); + } + return result; + }); + + /** + * The opposite of `_.pickBy`; this method creates an object composed of + * the own and inherited enumerable string keyed properties of `object` that + * `predicate` doesn't return truthy for. The predicate is invoked with two + * arguments: (value, key). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The source object. + * @param {Function} [predicate=_.identity] The function invoked per property. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.omitBy(object, _.isNumber); + * // => { 'b': '2' } + */ + function omitBy(object, predicate) { + return pickBy(object, negate(getIteratee(predicate))); + } + + /** + * Creates an object composed of the picked `object` properties. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The source object. + * @param {...(string|string[])} [paths] The property paths to pick. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.pick(object, ['a', 'c']); + * // => { 'a': 1, 'c': 3 } + */ + var pick = flatRest(function(object, paths) { + return object == null ? {} : basePick(object, paths); + }); + + /** + * Creates an object composed of the `object` properties `predicate` returns + * truthy for. The predicate is invoked with two arguments: (value, key). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The source object. + * @param {Function} [predicate=_.identity] The function invoked per property. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.pickBy(object, _.isNumber); + * // => { 'a': 1, 'c': 3 } + */ + function pickBy(object, predicate) { + if (object == null) { + return {}; + } + var props = arrayMap(getAllKeysIn(object), function(prop) { + return [prop]; + }); + predicate = getIteratee(predicate); + return basePickBy(object, props, function(value, path) { + return predicate(value, path[0]); + }); + } + + /** + * This method is like `_.get` except that if the resolved value is a + * function it's invoked with the `this` binding of its parent object and + * its result is returned. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to resolve. + * @param {*} [defaultValue] The value returned for `undefined` resolved values. + * @returns {*} Returns the resolved value. + * @example + * + * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] }; + * + * _.result(object, 'a[0].b.c1'); + * // => 3 + * + * _.result(object, 'a[0].b.c2'); + * // => 4 + * + * _.result(object, 'a[0].b.c3', 'default'); + * // => 'default' + * + * _.result(object, 'a[0].b.c3', _.constant('default')); + * // => 'default' + */ + function result(object, path, defaultValue) { + path = castPath(path, object); + + var index = -1, + length = path.length; + + // Ensure the loop is entered when path is empty. + if (!length) { + length = 1; + object = undefined; + } + while (++index < length) { + var value = object == null ? undefined : object[toKey(path[index])]; + if (value === undefined) { + index = length; + value = defaultValue; + } + object = isFunction(value) ? value.call(object) : value; + } + return object; + } + + /** + * Sets the value at `path` of `object`. If a portion of `path` doesn't exist, + * it's created. Arrays are created for missing index properties while objects + * are created for all other missing properties. Use `_.setWith` to customize + * `path` creation. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 3.7.0 + * @category Object + * @param {Object} object The object to modify. + * @param {Array|string} path The path of the property to set. + * @param {*} value The value to set. + * @returns {Object} Returns `object`. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 3 } }] }; + * + * _.set(object, 'a[0].b.c', 4); + * console.log(object.a[0].b.c); + * // => 4 + * + * _.set(object, ['x', '0', 'y', 'z'], 5); + * console.log(object.x[0].y.z); + * // => 5 + */ + function set(object, path, value) { + return object == null ? object : baseSet(object, path, value); + } + + /** + * This method is like `_.set` except that it accepts `customizer` which is + * invoked to produce the objects of `path`. If `customizer` returns `undefined` + * path creation is handled by the method instead. The `customizer` is invoked + * with three arguments: (nsValue, key, nsObject). + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The object to modify. + * @param {Array|string} path The path of the property to set. + * @param {*} value The value to set. + * @param {Function} [customizer] The function to customize assigned values. + * @returns {Object} Returns `object`. + * @example + * + * var object = {}; + * + * _.setWith(object, '[0][1]', 'a', Object); + * // => { '0': { '1': 'a' } } + */ + function setWith(object, path, value, customizer) { + customizer = typeof customizer == 'function' ? customizer : undefined; + return object == null ? object : baseSet(object, path, value, customizer); + } + + /** + * Creates an array of own enumerable string keyed-value pairs for `object` + * which can be consumed by `_.fromPairs`. If `object` is a map or set, its + * entries are returned. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @alias entries + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the key-value pairs. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.toPairs(new Foo); + * // => [['a', 1], ['b', 2]] (iteration order is not guaranteed) + */ + var toPairs = createToPairs(keys); + + /** + * Creates an array of own and inherited enumerable string keyed-value pairs + * for `object` which can be consumed by `_.fromPairs`. If `object` is a map + * or set, its entries are returned. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @alias entriesIn + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the key-value pairs. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.toPairsIn(new Foo); + * // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed) + */ + var toPairsIn = createToPairs(keysIn); + + /** + * An alternative to `_.reduce`; this method transforms `object` to a new + * `accumulator` object which is the result of running each of its own + * enumerable string keyed properties thru `iteratee`, with each invocation + * potentially mutating the `accumulator` object. If `accumulator` is not + * provided, a new object with the same `[[Prototype]]` will be used. The + * iteratee is invoked with four arguments: (accumulator, value, key, object). + * Iteratee functions may exit iteration early by explicitly returning `false`. + * + * @static + * @memberOf _ + * @since 1.3.0 + * @category Object + * @param {Object} object The object to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @param {*} [accumulator] The custom accumulator value. + * @returns {*} Returns the accumulated value. + * @example + * + * _.transform([2, 3, 4], function(result, n) { + * result.push(n *= n); + * return n % 2 == 0; + * }, []); + * // => [4, 9] + * + * _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { + * (result[value] || (result[value] = [])).push(key); + * }, {}); + * // => { '1': ['a', 'c'], '2': ['b'] } + */ + function transform(object, iteratee, accumulator) { + var isArr = isArray(object), + isArrLike = isArr || isBuffer(object) || isTypedArray(object); + + iteratee = getIteratee(iteratee, 4); + if (accumulator == null) { + var Ctor = object && object.constructor; + if (isArrLike) { + accumulator = isArr ? new Ctor : []; + } + else if (isObject(object)) { + accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {}; + } + else { + accumulator = {}; + } + } + (isArrLike ? arrayEach : baseForOwn)(object, function(value, index, object) { + return iteratee(accumulator, value, index, object); + }); + return accumulator; + } + + /** + * Removes the property at `path` of `object`. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The object to modify. + * @param {Array|string} path The path of the property to unset. + * @returns {boolean} Returns `true` if the property is deleted, else `false`. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 7 } }] }; + * _.unset(object, 'a[0].b.c'); + * // => true + * + * console.log(object); + * // => { 'a': [{ 'b': {} }] }; + * + * _.unset(object, ['a', '0', 'b', 'c']); + * // => true + * + * console.log(object); + * // => { 'a': [{ 'b': {} }] }; + */ + function unset(object, path) { + return object == null ? true : baseUnset(object, path); + } + + /** + * This method is like `_.set` except that accepts `updater` to produce the + * value to set. Use `_.updateWith` to customize `path` creation. The `updater` + * is invoked with one argument: (value). + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.6.0 + * @category Object + * @param {Object} object The object to modify. + * @param {Array|string} path The path of the property to set. + * @param {Function} updater The function to produce the updated value. + * @returns {Object} Returns `object`. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 3 } }] }; + * + * _.update(object, 'a[0].b.c', function(n) { return n * n; }); + * console.log(object.a[0].b.c); + * // => 9 + * + * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; }); + * console.log(object.x[0].y.z); + * // => 0 + */ + function update(object, path, updater) { + return object == null ? object : baseUpdate(object, path, castFunction(updater)); + } + + /** + * This method is like `_.update` except that it accepts `customizer` which is + * invoked to produce the objects of `path`. If `customizer` returns `undefined` + * path creation is handled by the method instead. The `customizer` is invoked + * with three arguments: (nsValue, key, nsObject). + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.6.0 + * @category Object + * @param {Object} object The object to modify. + * @param {Array|string} path The path of the property to set. + * @param {Function} updater The function to produce the updated value. + * @param {Function} [customizer] The function to customize assigned values. + * @returns {Object} Returns `object`. + * @example + * + * var object = {}; + * + * _.updateWith(object, '[0][1]', _.constant('a'), Object); + * // => { '0': { '1': 'a' } } + */ + function updateWith(object, path, updater, customizer) { + customizer = typeof customizer == 'function' ? customizer : undefined; + return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer); + } + + /** + * Creates an array of the own enumerable string keyed property values of `object`. + * + * **Note:** Non-object values are coerced to objects. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property values. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.values(new Foo); + * // => [1, 2] (iteration order is not guaranteed) + * + * _.values('hi'); + * // => ['h', 'i'] + */ + function values(object) { + return object == null ? [] : baseValues(object, keys(object)); + } + + /** + * Creates an array of the own and inherited enumerable string keyed property + * values of `object`. + * + * **Note:** Non-object values are coerced to objects. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property values. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.valuesIn(new Foo); + * // => [1, 2, 3] (iteration order is not guaranteed) + */ + function valuesIn(object) { + return object == null ? [] : baseValues(object, keysIn(object)); + } + + /*------------------------------------------------------------------------*/ + + /** + * Clamps `number` within the inclusive `lower` and `upper` bounds. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Number + * @param {number} number The number to clamp. + * @param {number} [lower] The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the clamped number. + * @example + * + * _.clamp(-10, -5, 5); + * // => -5 + * + * _.clamp(10, -5, 5); + * // => 5 + */ + function clamp(number, lower, upper) { + if (upper === undefined) { + upper = lower; + lower = undefined; + } + if (upper !== undefined) { + upper = toNumber(upper); + upper = upper === upper ? upper : 0; + } + if (lower !== undefined) { + lower = toNumber(lower); + lower = lower === lower ? lower : 0; + } + return baseClamp(toNumber(number), lower, upper); + } + + /** + * Checks if `n` is between `start` and up to, but not including, `end`. If + * `end` is not specified, it's set to `start` with `start` then set to `0`. + * If `start` is greater than `end` the params are swapped to support + * negative ranges. + * + * @static + * @memberOf _ + * @since 3.3.0 + * @category Number + * @param {number} number The number to check. + * @param {number} [start=0] The start of the range. + * @param {number} end The end of the range. + * @returns {boolean} Returns `true` if `number` is in the range, else `false`. + * @see _.range, _.rangeRight + * @example + * + * _.inRange(3, 2, 4); + * // => true + * + * _.inRange(4, 8); + * // => true + * + * _.inRange(4, 2); + * // => false + * + * _.inRange(2, 2); + * // => false + * + * _.inRange(1.2, 2); + * // => true + * + * _.inRange(5.2, 4); + * // => false + * + * _.inRange(-3, -2, -6); + * // => true + */ + function inRange(number, start, end) { + start = toFinite(start); + if (end === undefined) { + end = start; + start = 0; + } else { + end = toFinite(end); + } + number = toNumber(number); + return baseInRange(number, start, end); + } + + /** + * Produces a random number between the inclusive `lower` and `upper` bounds. + * If only one argument is provided a number between `0` and the given number + * is returned. If `floating` is `true`, or either `lower` or `upper` are + * floats, a floating-point number is returned instead of an integer. + * + * **Note:** JavaScript follows the IEEE-754 standard for resolving + * floating-point values which can produce unexpected results. + * + * @static + * @memberOf _ + * @since 0.7.0 + * @category Number + * @param {number} [lower=0] The lower bound. + * @param {number} [upper=1] The upper bound. + * @param {boolean} [floating] Specify returning a floating-point number. + * @returns {number} Returns the random number. + * @example + * + * _.random(0, 5); + * // => an integer between 0 and 5 + * + * _.random(5); + * // => also an integer between 0 and 5 + * + * _.random(5, true); + * // => a floating-point number between 0 and 5 + * + * _.random(1.2, 5.2); + * // => a floating-point number between 1.2 and 5.2 + */ + function random(lower, upper, floating) { + if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) { + upper = floating = undefined; + } + if (floating === undefined) { + if (typeof upper == 'boolean') { + floating = upper; + upper = undefined; + } + else if (typeof lower == 'boolean') { + floating = lower; + lower = undefined; + } + } + if (lower === undefined && upper === undefined) { + lower = 0; + upper = 1; + } + else { + lower = toFinite(lower); + if (upper === undefined) { + upper = lower; + lower = 0; + } else { + upper = toFinite(upper); + } + } + if (lower > upper) { + var temp = lower; + lower = upper; + upper = temp; + } + if (floating || lower % 1 || upper % 1) { + var rand = nativeRandom(); + return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper); + } + return baseRandom(lower, upper); + } + + /*------------------------------------------------------------------------*/ + + /** + * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase). + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category String + * @param {string} [string=''] The string to convert. + * @returns {string} Returns the camel cased string. + * @example + * + * _.camelCase('Foo Bar'); + * // => 'fooBar' + * + * _.camelCase('--foo-bar--'); + * // => 'fooBar' + * + * _.camelCase('__FOO_BAR__'); + * // => 'fooBar' + */ + var camelCase = createCompounder(function(result, word, index) { + word = word.toLowerCase(); + return result + (index ? capitalize(word) : word); + }); + + /** + * Converts the first character of `string` to upper case and the remaining + * to lower case. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category String + * @param {string} [string=''] The string to capitalize. + * @returns {string} Returns the capitalized string. + * @example + * + * _.capitalize('FRED'); + * // => 'Fred' + */ + function capitalize(string) { + return upperFirst(toString(string).toLowerCase()); + } + + /** + * Deburrs `string` by converting + * [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table) + * and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A) + * letters to basic Latin letters and removing + * [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks). + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category String + * @param {string} [string=''] The string to deburr. + * @returns {string} Returns the deburred string. + * @example + * + * _.deburr('déjà vu'); + * // => 'deja vu' + */ + function deburr(string) { + string = toString(string); + return string && string.replace(reLatin, deburrLetter).replace(reComboMark, ''); + } + + /** + * Checks if `string` ends with the given target string. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category String + * @param {string} [string=''] The string to inspect. + * @param {string} [target] The string to search for. + * @param {number} [position=string.length] The position to search up to. + * @returns {boolean} Returns `true` if `string` ends with `target`, + * else `false`. + * @example + * + * _.endsWith('abc', 'c'); + * // => true + * + * _.endsWith('abc', 'b'); + * // => false + * + * _.endsWith('abc', 'b', 2); + * // => true + */ + function endsWith(string, target, position) { + string = toString(string); + target = baseToString(target); + + var length = string.length; + position = position === undefined + ? length + : baseClamp(toInteger(position), 0, length); + + var end = position; + position -= target.length; + return position >= 0 && string.slice(position, end) == target; + } + + /** + * Converts the characters "&", "<", ">", '"', and "'" in `string` to their + * corresponding HTML entities. + * + * **Note:** No other characters are escaped. To escape additional + * characters use a third-party library like [_he_](https://mths.be/he). + * + * Though the ">" character is escaped for symmetry, characters like + * ">" and "/" don't need escaping in HTML and have no special meaning + * unless they're part of a tag or unquoted attribute value. See + * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands) + * (under "semi-related fun fact") for more details. + * + * When working with HTML you should always + * [quote attribute values](http://wonko.com/post/html-escaping) to reduce + * XSS vectors. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category String + * @param {string} [string=''] The string to escape. + * @returns {string} Returns the escaped string. + * @example + * + * _.escape('fred, barney, & pebbles'); + * // => 'fred, barney, & pebbles' + */ + function escape(string) { + string = toString(string); + return (string && reHasUnescapedHtml.test(string)) + ? string.replace(reUnescapedHtml, escapeHtmlChar) + : string; + } + + /** + * Escapes the `RegExp` special characters "^", "$", "\", ".", "*", "+", + * "?", "(", ")", "[", "]", "{", "}", and "|" in `string`. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category String + * @param {string} [string=''] The string to escape. + * @returns {string} Returns the escaped string. + * @example + * + * _.escapeRegExp('[lodash](https://lodash.com/)'); + * // => '\[lodash\]\(https://lodash\.com/\)' + */ + function escapeRegExp(string) { + string = toString(string); + return (string && reHasRegExpChar.test(string)) + ? string.replace(reRegExpChar, '\\$&') + : string; + } + + /** + * Converts `string` to + * [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles). + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category String + * @param {string} [string=''] The string to convert. + * @returns {string} Returns the kebab cased string. + * @example + * + * _.kebabCase('Foo Bar'); + * // => 'foo-bar' + * + * _.kebabCase('fooBar'); + * // => 'foo-bar' + * + * _.kebabCase('__FOO_BAR__'); + * // => 'foo-bar' + */ + var kebabCase = createCompounder(function(result, word, index) { + return result + (index ? '-' : '') + word.toLowerCase(); + }); + + /** + * Converts `string`, as space separated words, to lower case. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category String + * @param {string} [string=''] The string to convert. + * @returns {string} Returns the lower cased string. + * @example + * + * _.lowerCase('--Foo-Bar--'); + * // => 'foo bar' + * + * _.lowerCase('fooBar'); + * // => 'foo bar' + * + * _.lowerCase('__FOO_BAR__'); + * // => 'foo bar' + */ + var lowerCase = createCompounder(function(result, word, index) { + return result + (index ? ' ' : '') + word.toLowerCase(); + }); + + /** + * Converts the first character of `string` to lower case. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category String + * @param {string} [string=''] The string to convert. + * @returns {string} Returns the converted string. + * @example + * + * _.lowerFirst('Fred'); + * // => 'fred' + * + * _.lowerFirst('FRED'); + * // => 'fRED' + */ + var lowerFirst = createCaseFirst('toLowerCase'); + + /** + * Pads `string` on the left and right sides if it's shorter than `length`. + * Padding characters are truncated if they can't be evenly divided by `length`. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category String + * @param {string} [string=''] The string to pad. + * @param {number} [length=0] The padding length. + * @param {string} [chars=' '] The string used as padding. + * @returns {string} Returns the padded string. + * @example + * + * _.pad('abc', 8); + * // => ' abc ' + * + * _.pad('abc', 8, '_-'); + * // => '_-abc_-_' + * + * _.pad('abc', 3); + * // => 'abc' + */ + function pad(string, length, chars) { + string = toString(string); + length = toInteger(length); + + var strLength = length ? stringSize(string) : 0; + if (!length || strLength >= length) { + return string; + } + var mid = (length - strLength) / 2; + return ( + createPadding(nativeFloor(mid), chars) + + string + + createPadding(nativeCeil(mid), chars) + ); + } + + /** + * Pads `string` on the right side if it's shorter than `length`. Padding + * characters are truncated if they exceed `length`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category String + * @param {string} [string=''] The string to pad. + * @param {number} [length=0] The padding length. + * @param {string} [chars=' '] The string used as padding. + * @returns {string} Returns the padded string. + * @example + * + * _.padEnd('abc', 6); + * // => 'abc ' + * + * _.padEnd('abc', 6, '_-'); + * // => 'abc_-_' + * + * _.padEnd('abc', 3); + * // => 'abc' + */ + function padEnd(string, length, chars) { + string = toString(string); + length = toInteger(length); + + var strLength = length ? stringSize(string) : 0; + return (length && strLength < length) + ? (string + createPadding(length - strLength, chars)) + : string; + } + + /** + * Pads `string` on the left side if it's shorter than `length`. Padding + * characters are truncated if they exceed `length`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category String + * @param {string} [string=''] The string to pad. + * @param {number} [length=0] The padding length. + * @param {string} [chars=' '] The string used as padding. + * @returns {string} Returns the padded string. + * @example + * + * _.padStart('abc', 6); + * // => ' abc' + * + * _.padStart('abc', 6, '_-'); + * // => '_-_abc' + * + * _.padStart('abc', 3); + * // => 'abc' + */ + function padStart(string, length, chars) { + string = toString(string); + length = toInteger(length); + + var strLength = length ? stringSize(string) : 0; + return (length && strLength < length) + ? (createPadding(length - strLength, chars) + string) + : string; + } + + /** + * Converts `string` to an integer of the specified radix. If `radix` is + * `undefined` or `0`, a `radix` of `10` is used unless `value` is a + * hexadecimal, in which case a `radix` of `16` is used. + * + * **Note:** This method aligns with the + * [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`. + * + * @static + * @memberOf _ + * @since 1.1.0 + * @category String + * @param {string} string The string to convert. + * @param {number} [radix=10] The radix to interpret `value` by. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {number} Returns the converted integer. + * @example + * + * _.parseInt('08'); + * // => 8 + * + * _.map(['6', '08', '10'], _.parseInt); + * // => [6, 8, 10] + */ + function parseInt(string, radix, guard) { + if (guard || radix == null) { + radix = 0; + } else if (radix) { + radix = +radix; + } + return nativeParseInt(toString(string).replace(reTrimStart, ''), radix || 0); + } + + /** + * Repeats the given string `n` times. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category String + * @param {string} [string=''] The string to repeat. + * @param {number} [n=1] The number of times to repeat the string. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {string} Returns the repeated string. + * @example + * + * _.repeat('*', 3); + * // => '***' + * + * _.repeat('abc', 2); + * // => 'abcabc' + * + * _.repeat('abc', 0); + * // => '' + */ + function repeat(string, n, guard) { + if ((guard ? isIterateeCall(string, n, guard) : n === undefined)) { + n = 1; + } else { + n = toInteger(n); + } + return baseRepeat(toString(string), n); + } + + /** + * Replaces matches for `pattern` in `string` with `replacement`. + * + * **Note:** This method is based on + * [`String#replace`](https://mdn.io/String/replace). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category String + * @param {string} [string=''] The string to modify. + * @param {RegExp|string} pattern The pattern to replace. + * @param {Function|string} replacement The match replacement. + * @returns {string} Returns the modified string. + * @example + * + * _.replace('Hi Fred', 'Fred', 'Barney'); + * // => 'Hi Barney' + */ + function replace() { + var args = arguments, + string = toString(args[0]); + + return args.length < 3 ? string : string.replace(args[1], args[2]); + } + + /** + * Converts `string` to + * [snake case](https://en.wikipedia.org/wiki/Snake_case). + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category String + * @param {string} [string=''] The string to convert. + * @returns {string} Returns the snake cased string. + * @example + * + * _.snakeCase('Foo Bar'); + * // => 'foo_bar' + * + * _.snakeCase('fooBar'); + * // => 'foo_bar' + * + * _.snakeCase('--FOO-BAR--'); + * // => 'foo_bar' + */ + var snakeCase = createCompounder(function(result, word, index) { + return result + (index ? '_' : '') + word.toLowerCase(); + }); + + /** + * Splits `string` by `separator`. + * + * **Note:** This method is based on + * [`String#split`](https://mdn.io/String/split). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category String + * @param {string} [string=''] The string to split. + * @param {RegExp|string} separator The separator pattern to split by. + * @param {number} [limit] The length to truncate results to. + * @returns {Array} Returns the string segments. + * @example + * + * _.split('a-b-c', '-', 2); + * // => ['a', 'b'] + */ + function split(string, separator, limit) { + if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) { + separator = limit = undefined; + } + limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0; + if (!limit) { + return []; + } + string = toString(string); + if (string && ( + typeof separator == 'string' || + (separator != null && !isRegExp(separator)) + )) { + separator = baseToString(separator); + if (!separator && hasUnicode(string)) { + return castSlice(stringToArray(string), 0, limit); + } + } + return string.split(separator, limit); + } + + /** + * Converts `string` to + * [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage). + * + * @static + * @memberOf _ + * @since 3.1.0 + * @category String + * @param {string} [string=''] The string to convert. + * @returns {string} Returns the start cased string. + * @example + * + * _.startCase('--foo-bar--'); + * // => 'Foo Bar' + * + * _.startCase('fooBar'); + * // => 'Foo Bar' + * + * _.startCase('__FOO_BAR__'); + * // => 'FOO BAR' + */ + var startCase = createCompounder(function(result, word, index) { + return result + (index ? ' ' : '') + upperFirst(word); + }); + + /** + * Checks if `string` starts with the given target string. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category String + * @param {string} [string=''] The string to inspect. + * @param {string} [target] The string to search for. + * @param {number} [position=0] The position to search from. + * @returns {boolean} Returns `true` if `string` starts with `target`, + * else `false`. + * @example + * + * _.startsWith('abc', 'a'); + * // => true + * + * _.startsWith('abc', 'b'); + * // => false + * + * _.startsWith('abc', 'b', 1); + * // => true + */ + function startsWith(string, target, position) { + string = toString(string); + position = position == null + ? 0 + : baseClamp(toInteger(position), 0, string.length); + + target = baseToString(target); + return string.slice(position, position + target.length) == target; + } + + /** + * Creates a compiled template function that can interpolate data properties + * in "interpolate" delimiters, HTML-escape interpolated data properties in + * "escape" delimiters, and execute JavaScript in "evaluate" delimiters. Data + * properties may be accessed as free variables in the template. If a setting + * object is given, it takes precedence over `_.templateSettings` values. + * + * **Note:** In the development build `_.template` utilizes + * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl) + * for easier debugging. + * + * For more information on precompiling templates see + * [lodash's custom builds documentation](https://lodash.com/custom-builds). + * + * For more information on Chrome extension sandboxes see + * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval). + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category String + * @param {string} [string=''] The template string. + * @param {Object} [options={}] The options object. + * @param {RegExp} [options.escape=_.templateSettings.escape] + * The HTML "escape" delimiter. + * @param {RegExp} [options.evaluate=_.templateSettings.evaluate] + * The "evaluate" delimiter. + * @param {Object} [options.imports=_.templateSettings.imports] + * An object to import into the template as free variables. + * @param {RegExp} [options.interpolate=_.templateSettings.interpolate] + * The "interpolate" delimiter. + * @param {string} [options.sourceURL='lodash.templateSources[n]'] + * The sourceURL of the compiled template. + * @param {string} [options.variable='obj'] + * The data object variable name. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Function} Returns the compiled template function. + * @example + * + * // Use the "interpolate" delimiter to create a compiled template. + * var compiled = _.template('hello <%= user %>!'); + * compiled({ 'user': 'fred' }); + * // => 'hello fred!' + * + * // Use the HTML "escape" delimiter to escape data property values. + * var compiled = _.template('<%- value %>'); + * compiled({ 'value': '