.eslintrc

{
  "parserOptions": {
    "ecmaVersion": 8,
    "sourceType": "module"
  },
  "env": {
    "browser": true,
    "jquery": true,
    "es6": true,
    "amd": true,
    "node": true
  },
  "globals": {
    "console": true,
    "chrome": true,
    "Promise": true,
    "google": true,
    "Set": true,
    "Map": true,
    "JSON": true
  },
  "extends": "airbnb",
  "rules": {
    /* possible errors */

    "comma-dangle": [
      2,
      "never"
    ],
    "no-cond-assign": 2,
    "no-console": 0,
    "no-constant-condition": 2,
    "no-control-regex": 0,
    "no-debugger": 2,
    "no-dupe-args": 2,
    "no-dupe-keys": 2,
    "no-duplicate-case": 2,
    "no-empty-character-class": 2,
    "no-empty": 2,
    "no-ex-assign": 2,
    "no-extra-boolean-cast": 0,
    "no-extra-parens": 0,
    "no-extra-semi": 2,
    "no-func-assign": 2,
    "no-inner-declarations": 2,
    "no-invalid-regexp": 2,
    "no-irregular-whitespace": 2,
    "no-negated-in-lhs": 2,
    "no-obj-calls": 2,
    "no-regex-spaces": 2,
    "no-sparse-arrays": 2,
    "no-unreachable": 2,
    "use-isnan": 2,
    "valid-jsdoc": 0,
    "valid-typeof": 2,
    "no-unexpected-multiline": 2,
    /* best practises */

    "accessor-pairs": 2,
    "block-scoped-var": 2,
    "class-methods-use-this": 1,
    "complexity": 0,
    "consistent-return": 2,
    "curly": 0,
    "default-case": 2,
    "dot-location": [
      2,
      "property"
    ],
    "dot-notation": 2,
    "eqeqeq": [
      2,
      "allow-null"
    ],
    "guard-for-in": 2,
    "no-alert": 2,
    "no-caller": 2,
    "no-div-regex": 2,
    "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-implicit-coercion": 0,
    "no-implied-eval": 2,
    "no-invalid-this": 0,
    "no-iterator": 2,
    "no-labels": 2,
    "no-lone-blocks": 2,
    "no-loop-func": 2,
    "no-multi-spaces": 2,
    "no-multi-str": 2,
    "no-native-reassign": 2,
    "no-new-func": 2,
    "no-new-wrappers": 2,
    "no-new": 0,
    "no-octal-escape": 2,
    "no-octal": 2,
    "no-param-reassign": 0,
    "no-process-env": 0,
    "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-useless-concat": 2,
    "no-void": 2,
    "no-warning-comments": 0,
    "no-with": 2,
    "radix": 2,
    "vars-on-top": 0,
    "wrap-iife": [
      2,
      "any"
    ],
    "yoda": 2,
    "no-restricted-properties": [
      "error",
      {
        "object": "arguments",
        "property": "callee",
        "message": "arguments.callee is deprecated"
      },
      {
        "property": "__defineGetter__",
        "message": "Please use Object.defineProperty instead."
      },
      {
        "property": "__defineSetter__",
        "message": "Please use Object.defineProperty instead."
      }
    ],

    /* strict */
    "strict": 0,

    /* variables */
    "init-declarations": 0,
    "no-catch-shadow": 2,
    "no-delete-var": 2,
    "no-label-var": 2,
    "no-shadow-restricted-names": 2,
    "no-shadow": 2,
    "no-undef-init": 2,
    "no-undef": 2,
    "no-unused-vars": 2,
    "no-use-before-define": 2,

    /* stylistic issues */

    "array-bracket-spacing": [
      2,
      "never"
    ],
    "block-spacing": [
      2,
      "always"
    ],
    "brace-style": [
      2,
      "1tbs",
      {
        "allowSingleLine": true
      }
    ],
    "camelcase": 2,
    "comma-spacing": [
      2,
      {
        "before": false,
        "after": true
      }
    ],
    "comma-style": [
      2,
      "last"
    ],
    "computed-property-spacing": 0,
    "consistent-this": [
      2,
      "_this"
    ],
    "eol-last": 2,
    "func-names": 0,
    "func-style": 0,
    "id-length": 0,
    "id-match": 0,
    "indent": [
      2,
      2
    ],
    "jsx-quotes": 0,
    "key-spacing": [
      2,
      {
        "beforeColon": false,
        "afterColon": true
      }
    ],
    "linebreak-style": 0,
    "lines-around-comment": 0,
    "max-depth": [
      2,
      3
    ],
    "max-len": [
      2,
      120,
      2,
      {
        "ignoreComments": true,
        "ignoreUrls": true
      }
    ],
    "max-nested-callbacks": [
      2,
      3
    ],
    "max-params": [
      2,
      5
    ],
    "max-statements": 0,
    "new-cap": 2,
    "new-parens": 2,
    "newline-after-var": [
      2,
      "always"
    ],
    "no-array-constructor": 2,
    "no-bitwise": 0,
    "no-continue": 0,
    "no-inline-comments": 0,
    "no-lonely-if": 2,
    "no-mixed-spaces-and-tabs": 2,
    "no-mixed-operators": 0,
    "no-multiple-empty-lines": [
      2,
      {
        "max": 2
      }
    ],
    "no-negated-condition": 0,
    "no-nested-ternary": 0,
    "no-new-object": 2,
    "no-plusplus": 0,
    "no-restricted-syntax": 0,
    "no-spaced-func": 2,
    "no-ternary": 0,
    "no-trailing-spaces": 2,
    "no-underscore-dangle": 2,
    "no-unneeded-ternary": 2,
    "object-curly-spacing": 0,
    "one-var": 0,
    "one-var-declaration-per-line": 0,
    "operator-assignment": 0,
    "operator-linebreak": 0,
    "padded-blocks": [
      2,
      "never"
    ],
    "quote-props": [
      2,
      "as-needed"
    ],
    "quotes": [
      2,
      "single"
    ],
    "require-jsdoc": 0,
    "semi-spacing": [
      2,
      {
        "before": false,
        "after": true
      }
    ],
    "semi": [
      2,
      "always"
    ],
    "sort-vars": 0,
    "space-before-blocks": [
      2,
      "always"
    ],
    "space-before-function-paren": [
      "error",
      {
        "anonymous": "always",
        "named": "never",
        "asyncArrow": "ignore"
      }
    ],
    "space-in-parens": [
      2,
      "never"
    ],
    "space-infix-ops": 2,
    "space-unary-ops": [
      2,
      {
        "words": true,
        "nonwords": false
      }
    ],
    "spaced-comment": 0,
    "wrap-regex": 0,

    /* ECMAScript 6 */
    "arrow-body-style": 0,
    "arrow-parens": 0,
    "arrow-spacing": [
      2,
      {
        "before": true,
        "after": true
      }
    ],
    "constructor-super": 2,
    "generator-star-spacing": 0,
    "no-class-assign": 2,
    "no-confusing-arrow": 0,
    "no-const-assign": 2,
    "no-dupe-class-members": 2,
    "no-new-symbol": 2,
    "no-this-before-super": 2,
    "no-useless-constructor": 2,
    "no-var": 2,
    "object-shorthand": 0,
    "prefer-arrow-callback": 0,
    "prefer-const": 2,
    "prefer-reflect": 0,
    "prefer-rest-params": 0,
    "prefer-spread": 0,
    "prefer-template": 0,
    "require-yield": 2,
    "template-curly-spacing": 0,
    "yield-star-spacing": 0,

    /* airbnb */
    "react/jsx-filename-extension": [1, { "extensions": [".js", ".jsx"] }]
  }
}