.eslintrc

{
  "ecmaFeatures": {
    "arrowFunctions": true,
    "binaryLiterals": true,
    "blockBindings": true,
    "classes": true,
    "defaultParams": true,
    "destructuring": true,
    "forOf": true,
    "generators": true,
    "modules": true,
    "objectLiteralComputedProperties": true,
    "objectLiteralDuplicateProperties": true,
    "objectLiteralShorthandMethods": true,
    "objectLiteralShorthandProperties": true,
    "octalLiterals": true,
    "regexUFlag": true,
    "regexYFlag": true,
    "restParams": true,
    "spread": true,
    "superInFunctions": true,
    "templateStrings": true,
    "unicodeCodePointEscapes": true,
    "globalReturn": true,
    "experimentalObjectRestSpread": true
  },
  "env": {
    "browser": true,
    "node": true,
    "mocha": true,
    "es6": true
  },
  "parser": "babel-eslint",
  # "globals": {
  #   $: true
  # },
  "plugins": [
    "babel"
  ],
  "rules": {
    "babel/generator-star-spacing": [ 0, "before" ],
    "generator-star-spacing": [ 0, "before" ],

    "babel/new-cap": 2,
    "new-cap": 0,

    "babel/array-bracket-spacing": [ 2, "always" ],
    "array-bracket-spacing": 0,

    "babel/object-curly-spacing": [ 2, "always" ],
    "object-curly-spacing": 0,

    "babel/object-shorthand": [ 2, "always" ],
    "object-shorthand": 0,

    "babel/arrow-parens": [ 2, "always" ],
    "arrow-parens": 0,

    "babel/no-await-in-loop": 1,

    "arrow-spacing": 2,
    "block-scoped-var": 2,
    "block-spacing": [ 2, "always" ],
    "brace-style": [ 2, "1tbs" ],
    "camelcase": [ 0, { "properties": "never" } ],
    "comma-spacing": [ 2, { "before": false, "after": true } ],
    "comma-style": [ 2, "last" ],
    "complexity": [ 2, 12 ],
    "computed-property-spacing": [ 2, "never" ],
    "consistent-this": [ 2, "self" ],
    "constructor-super": 2,
    "curly": [ 2, "multi-line" ],
    "default-case": 2,
    "dot-location": [ 2, "property" ],
    "dot-notation": [ 2, { "allowKeywords": true } ],
    "eol-last": 2,
    "eqeqeq": [ 2, "allow-null" ],
    "func-names": 1,

    "guard-for-in": 1,
    "id-length": [
      1,
      {
        "min": 2,
        "max": 30,
        "properties": "always",
        "exceptions": [ "i", "k", "a", "b", "c", "d", "e", "l", "x", "y", "z", "_", "t", "$" ]
      }
    ],
    "id-match": [ 2, "^(?:[a-z]{2,}([A-Z]{1}[a-z]+)*$)|([a-z_]+$)|\\$" ],
    "indent": [ 2, 2 , { "SwitchCase": 1 } ],
    "key-spacing": [ 2, { "beforeColon": false, "afterColon": true } ],
    "linebreak-style": [ 2, "unix" ],
    "max-depth": [ 2, 5 ],
    "max-len": [
      2,
      150,
      2,
      {
        "ignoreUrls": true,
        "ignorePattern": "^\\s*(var|const|let)\\s.+=\\s*(?:(?:[a-z.\\[\\]'\"]+\\s+\\+)|(?:'|\"))"
      }
    ],
    "max-nested-callbacks": [2, 5],
    "max-params": [ 1, 4 ],
    "max-statements": [ 1, 30 ],
    "new-parens": 2,
    "no-alert": 2,
    "no-array-constructor": 2,
    "no-bitwise": 0,
    "no-caller": 2,
    "no-catch-shadow": 2,
    "no-class-assign": 2,
    "no-cond-assign": [ 2, "except-parens" ],
    "no-const-assign": 2,
    "no-continue": 2,
    "no-debugger": 2,
    "no-delete-var": 2,
    "no-div-regex": 2,
    "no-dupe-class-members": 2,
    "no-else-return": 2,
    "no-empty": 2,
    "no-eval": 2,
    "no-extend-native": 2,
    "no-extra-parens": 0,
    "no-fallthrough": 2,
    "no-floating-decimal": 2,
    "no-implied-eval": 2,
    "no-invalid-this": 2,
    "no-irregular-whitespace": 2,
    "no-iterator": 2,
    "no-label-var": 2,
    "no-labels": 2,
    "no-lone-blocks": 2,
    "no-lonely-if": 1,
    "no-loop-func": 2,
    "no-mixed-spaces-and-tabs": 2,
    "no-multi-spaces": 2,
    "no-multi-str": 2,
    "no-multiple-empty-lines": [ 2, { "max": 3, "maxEOF": 1 } ],
    "no-native-reassign": 2,
    "no-nested-ternary": 2,
    "no-new-func": 2,
    "no-new-object": 2,
    "no-new-wrappers": 2,
    "no-new": 2,
    "no-octal-escape": 2,
    "no-octal": 2,
    "no-proto": 2,
    "no-redeclare": [ 2, { "builtinGlobals": true } ],
    "no-regex-spaces": 2,
    "no-restricted-syntax": [ 2, "WithStatement" ],
    "no-return-assign": 2,
    "no-script-url": 2,
    "no-self-compare": 2,
    "no-sequences": 2,
    "no-shadow-restricted-names": 2,
    "no-shadow": 2,
    "no-spaced-func": 2,
    "no-this-before-super": 2,
    "no-throw-literal": 2,
    "no-trailing-spaces": 2,
    "no-undef-init": 2,
    "no-undef": 2,
    "no-unneeded-ternary": 2,
    "no-unused-expressions": [ 2, { "allowShortCircuit": true, "allowTernary": true } ],
    "no-unused-vars": 2,
    "no-use-before-define": 0,
    "no-useless-call": 2,
    "no-useless-concat": 2,
    "no-var": 0,
    "no-void": 2,
    "no-warning-comments": [ 1, { "terms": [ "@todo", "@fix", "@fixme" ], "location": "start" } ],
    "no-with": 2,
    "one-var": [ 2, { "uninitialized": "always", "initialized": "never" } ],
    "operator-assignment": [ 2, "always" ],
    "operator-linebreak": [ 2, "after" ],
    "padded-blocks": [ 2, "never" ],
    "prefer-arrow-callback": 2,
    "prefer-const": 0,
    "prefer-spread": 2,
    "prefer-template": 0,
    "quote-props": [ 2, "as-needed" ],
    "quotes": [ 2, "single", "avoid-escape" ],
    "require-yield": 2,
    "semi-spacing": 2,
    "semi": [ 1, "never" ],
    "no-extra-semi": [ 1 ],
    "keyword-spacing": [ 2, { "before": true, "after": true, "overrides": {} } ],
    "space-before-blocks": [ 2, "always" ],
    "space-before-function-paren": [ 2, "never" ],
    "space-in-parens": [ 2, "never" ],
    "space-infix-ops": [ 2, { "int32Hint": true } ],
    "space-unary-ops": 2,
    "spaced-comment": [
      2,
      "always",
      {
        "line": { "markers": [ "/", "/#" ], "exceptions": [ "-", "+", "/", "#" ] },
        "block": { "markers": [ "!", "*#" ], "exceptions": [ "*", "#" ] }
      }
    ],
    "valid-typeof": 2,
    "wrap-iife": [ 2, "inside" ],
    "yoda": 2
  }
}