.eslintrc.js

module.exports = {
  'parser': 'babel-eslint',
  'parserOptions': {
    'strict': 1,
    'ecmaVersion': 6,
    'sourceType': 'module'
  },
  'env': {
    'browser': true,
    'commonjs': true,
    'es6': true
  },
  'rules': {
    'comma-dangle': [
      2,
      'never'
    ],
    'no-cond-assign': [
      2,
      'except-parens'
    ],
    'no-console': 1,
    'no-constant-condition': 2,
    'no-control-regex': 2,
    'no-debugger': 1,
    'no-dupe-args': 2,
    'no-dupe-keys': 2,
    'no-duplicate-case': 2,
    'no-empty': 2,
    'no-empty-character-class': 2,
    'no-ex-assign': 2,
    'no-extra-boolean-cast': 2,
    'no-extra-semi': 2,
    'no-func-assign': 0,
    'no-inner-declarations': 0,
    'no-invalid-regexp': 2,
    'no-irregular-whitespace': 2,
    'no-negated-in-lhs': 2,
    'no-obj-calls': 2,
    'no-regex-spaces': 2,
    'quote-props': [
      2,
      'as-needed',
      {
        'keywords': true,
        'unnecessary': false
      }
    ],
    'no-sparse-arrays': 0,
    'no-unreachable': 1,
    'use-isnan': 2,
    'valid-jsdoc': 0,
    'valid-typeof': 2,
    'block-scoped-var': 0,
    'complexity': 0,
    'consistent-return': 0,
    'curly': 2,
    'default-case': 1,
    'dot-notation': [
      2,
      {
        'allowKeywords': false
      }
    ],
    'eqeqeq': 0,
    'guard-for-in': 1,
    'no-alert': 2,
    'no-caller': 2,
    'no-div-regex': 1,
    'no-else-return': 0,
    'no-eq-null': 0,
    'no-eval': 2,
    'no-extend-native': 2,
    'no-extra-bind': 2,
    'no-fallthrough': 2,
    'no-floating-decimal': 2,
    'no-implied-eval': 2,
    'no-iterator': 0,
    'no-labels': 2,
    'no-lone-blocks': 2,
    'no-loop-func': 2,
    'no-multi-spaces': 2,
    'no-multi-str': 1,
    'no-native-reassign': 2,
    'no-new': 2,
    'no-new-func': 2,
    'no-new-wrappers': 2,
    'no-octal': 2,
    'no-octal-escape': 2,
    'no-param-reassign': 0,
    'no-process-env': 2,
    'no-proto': 2,
    'no-redeclare': 2,
    'no-return-assign': 2,
    'no-script-url': 2,
    'no-self-compare': 2,
    'no-sequences': 2,
    'no-throw-literal': 2,
    'no-unused-expressions': 2,
    'no-void': 0,
    'no-warning-comments': 1,
    'no-with': 2,
    'radix': 2,
    'vars-on-top': 0,
    'wrap-iife': 2,
    'yoda': 0,
    'strict': 1,
    'no-catch-shadow': 2,
    'no-delete-var': 2,
    'no-label-var': 2,
    'no-shadow': 0,
    'no-shadow-restricted-names': 2,
    'no-undef': 2,
    'no-undef-init': 2,
    'no-undefined': 0,
    'no-unused-vars': [
      2,
      {
        'vars': 'all',
        'args': 'after-used'
      }
    ],
    'no-use-before-define': [
      2,
      'nofunc'
    ],
    'no-mixed-requires': 0,
    'indent': 0,
    'brace-style': [
      2,
      '1tbs',
      {
        'allowSingleLine': true
      }
    ],
    'camelcase': 2,
    'comma-spacing': [
      2,
      {
        'before': false,
        'after': true
      }
    ],
    'comma-style': [
      2,
      'last'
    ],
    'consistent-this': [
      1,
      'self'
    ],
    'eol-last': 2,
    'func-names': 0,
    'func-style': [
      2,
      'declaration'
    ],
    'key-spacing': [
      2,
      {
        'beforeColon': false,
        'afterColon': true
      }
    ],
    'max-nested-callbacks': 0,
    'new-cap': 2,
    'new-parens': 2,
    'newline-after-var': 0,
    'no-array-constructor': 2,
    'no-continue': 0,
    'no-inline-comments': 0,
    'no-lonely-if': 2,
    'no-mixed-spaces-and-tabs': 2,
    'no-multiple-empty-lines': 0,
    'no-nested-ternary': 1,
    'no-new-object': 2,
    'no-spaced-func': 2,
    'no-ternary': 0,
    'no-trailing-spaces': 2,
    'no-underscore-dangle': 0,
    'no-extra-parens': [
      2,
      'functions'
    ],
    'one-var': 0,
    'operator-assignment': 0,
    'padded-blocks': 0,
    'quotes': [
      2,
      'single',
      'avoid-escape'
    ],
    'semi': 2,
    'semi-spacing': [
      2,
      {
        'before': false,
        'after': true
      }
    ],
    'sort-vars': 0,
    'keyword-spacing': 2,
    'space-before-blocks': [
      2,
      'always'
    ],
    'space-before-function-paren': [
      2,
      {
        'anonymous': 'never',
        'named': 'never'
      }
    ],
    'space-in-brackets': 0,
    'space-in-parens': [
      2,
      'never'
    ],
    'space-infix-ops': 2,
    'space-unary-ops': 2,
    'spaced-comment': [
      2,
      'always',
      {
        'markers': [
          ','
        ]
      }
    ],
    'wrap-regex': 1,
    'no-var': 1
  }
};