.eslintrc

{
  // http://eslint.org/docs/user-guide/configuring.html
  "root": true,
  "extends": "eslint:recommended",
  "env": {
    "node": true,
    "es6": true
  },
  "parserOptions": {
    "ecmaVersion": 6
  },
  "rules": {
    // Errors.
    "array-bracket-spacing": [2, "never"],
    "block-scoped-var": 2,
    "brace-style": [2, "1tbs", {"allowSingleLine": true}],
    "camelcase": 2,
    "comma-dangle": [2, "never"],
    "comma-spacing": 2,
    "comma-style": [2, "last"],
    "computed-property-spacing": [2, "never"],
    "consistent-this": [2, "self"],
    "curly": [2, "all"],
    "eol-last": 2,
    "eqeqeq": [2, "smart"],
    "guard-for-in": 2,
    "indent": [2, 2, {"SwitchCase": 1}],
    "key-spacing": [2, {"beforeColon": false, "afterColon": true}],
    "keyword-spacing": 2,
    "linebreak-style": [2, "unix"],
    "max-nested-callbacks": [2, 3],
    "new-parens": 2,
    "no-array-constructor": 2,
    "no-caller": 2,
    "no-catch-shadow": 2,
    "no-eval": 2,
    "no-extend-native": 2,
    "no-extra-bind": 2,
    "no-implied-eval": 2,
    "no-iterator": 2,
    "no-label-var": 2,
    "no-labels": [2, {"allowLoop": true, "allowSwitch": true}],
    "no-lone-blocks": 2,
    "no-loop-func": 2,
    "no-mixed-requires": [2, false],
    "no-multi-spaces": 2,
    "no-multi-str": 2,
    "no-native-reassign": 2,
    "no-nested-ternary": 2,
    "no-new-func": 2,
    "no-new-object": 2,
    "no-new-wrappers": 2,
    "no-octal-escape": 2,
    "no-process-exit": 2,
    "no-proto": 2,
    "no-return-assign": 2,
    "no-script-url": 2,
    "no-sequences": 2,
    "no-shadow-restricted-names": 2,
    "no-spaced-func": 2,
    "no-throw-literal": 2,
    "no-trailing-spaces": 2,
    "no-undef-init": 2,
    "no-undefined": 2,
    "no-unused-expressions": 2,
    "no-unused-vars": 2,
    "no-with": 2,
    "object-curly-spacing": [2, "never"],
    "quote-props": [2, "consistent-as-needed"],
    "quotes": [2, "single", "avoid-escape"],
    "semi": [2, "always"],
    "semi-spacing": [2, {"before": false, "after": true}],
    "space-before-function-paren": [2, "never"],
    "space-in-parens": [2, "never"],
    "space-infix-ops": 2,
    "space-unary-ops": [2, { "words": true, "nonwords": false }],
    "spaced-comment": [2, "always"],
    "strict": [2, "global"],
    "valid-jsdoc": [2, {
      "prefer": {
        "return": "returns"
      },
      "requireReturn": false
    }],
    "wrap-iife": 2,
    "yoda": [2, "never"],
    // Disabled.
    "no-console": 0,
    "no-prototype-builtins": 0,
    // Disable no-useless-escape as there are regex masks that are required.
    "no-useless-escape": 0
  }
}