.eslintrc.js

const error = 2;
const warn = 1;
const ignore = 0;

module.exports = {
  parser: 'babel-eslint',
  env: {
    browser: true,
    node: true,
    jquery: true,
    jest: true,
  },
  plugins: ['jquery'],
  extends: ['plugin:jquery/deprecated'],
  globals: {
    google: 'readonly',
    YT: 'readonly',
  },
  rules: {
    'no-undef': warn,
    'no-unused-vars': warn,
    eqeqeq: [error, 'smart'],
    'no-floating-decimal': error,
    'no-multi-spaces': [
      error,
      {
        exceptions: {
          ImportDeclaration: true,
          VariableDeclarator: true,
        },
      },
    ],
    'no-multi-str': error,
    camelcase: warn,
    'eol-last': warn,
    indent: [
      error,
      error,
      {
        SwitchCase: warn,
        VariableDeclarator: warn,
      },
    ],
    quotes: [error, 'single', 'avoid-escape'],
    semi: [error, 'always'],
    'space-before-blocks': error,
    "space-before-function-paren": ["error", {
      "anonymous": "never",
      "named": "never",
      "asyncArrow": "always"
    }],
    'constructor-super': error,
    'arrow-spacing': error,
    'jquery/no-ajax': error,
    'jquery/no-animate': error,
    'jquery/no-attr': error,
    'jquery/no-bind': error,
    'jquery/no-class': error,
    'jquery/no-clone': error,
    'jquery/no-closest': error,
    'jquery/no-css': error,
    'jquery/no-data': error,
    'jquery/no-deferred': error,
    'jquery/no-delegate': error,
    'jquery/no-each': error,
    'jquery/no-fade': error,
    'jquery/no-filter': error,
    'jquery/no-find': error,
    'jquery/no-global-eval': error,
    'jquery/no-has': error,
    'jquery/no-hide': error,
    'jquery/no-html': error,
    'jquery/no-in-array': error,
    'jquery/no-is': error,
    'jquery/no-map': error,
    'jquery/no-merge': error,
    'jquery/no-param': error,
    'jquery/no-parent': error,
    'jquery/no-parents': error,
    'jquery/no-parse-html': error,
    'jquery/no-prop': error,
    'jquery/no-proxy': error,
    'jquery/no-serialize': error,
    'jquery/no-show': error,
    'jquery/no-sizzle': error,
    'jquery/no-slide': error,
    'jquery/no-text': error,
    'jquery/no-toggle': error,
    'jquery/no-trigger': error,
    'jquery/no-trim': error,
    'jquery/no-val': error,
    'jquery/no-wrap': error,
  },
};