.eslintrc.json

{
  "env": {
    "browser": true,
    "es6": true,
    "node": true
  },
  "ignorePatterns": ["/*.js", "lib", "coverage"],
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "project": "tsconfig.json",
    "sourceType": "module"
  },
  "plugins": ["eslint-plugin-import", "@typescript-eslint", "prettier"],
  "extends": [
    "eslint:recommended",
    "plugin:import/recommended",
    "plugin:import/typescript",
    "plugin:@typescript-eslint/recommended",
    "prettier"
  ],
  "rules": {
    // Customized rules
    "@typescript-eslint/no-extra-semi": "off", // Prettier work
    "@typescript-eslint/no-unused-vars": "error",
    "@typescript-eslint/prefer-for-of": "error",
    "@typescript-eslint/unified-signatures": "error",

    "import/no-deprecated": "error",
    "import/no-extraneous-dependencies": "error",
    "import/no-unassigned-import": "error",
    "import/no-unresolved": "off",
    "import/order": ["error", { "newlines-between": "always-and-inside-groups" }],

    "prettier/prettier": [
      "error",
      {
        "semi": false,
        "trailingComma": "all",
        "printWidth": 90,
        "quoteProps": "consistent",
        "singleQuote": false,
        "tabWidth": 2,
        "useTabs": false,
        "bracketSpacing": true,
        "arrowParens": "always",
        "proseWrap": "preserve",
        "endOfLine": "lf"
      }
    ],

    "arrow-body-style": "off",

    "prefer-arrow-callback": "error",
    "no-duplicate-imports": "error",
    "no-empty-function": "error",
    "no-empty": ["error", { "allowEmptyCatch": true }],
    "no-new-wrappers": "error",
    "no-param-reassign": "error",
    "no-return-await": "error",
    "no-sequences": "error",
    "no-throw-literal": "error",
    "no-void": "error",

    // Temporarily disabled recommended rules
    "@typescript-eslint/explicit-module-boundary-types": "off",
    "no-async-promise-executor": "off"
  },
  "settings": {
    "import/resolver": {
      "node": {
        "paths": ["."]
      }
    }
  }
}