.eslintrc

{
  "ecmaFeatures": {
    "modules": true
  },
  "env": {
    "browser": true,
    "node": true,
    "mocha": true
  },
  "parser": "babel-eslint",
  "rules": {
    "quotes": [2, "single"],
    "strict": [2, "never"],
    "no-console": 1,
    "no-alert": 1,
    "no-debugger": 1,
    "no-cond-assign": 2,
    "no-constant-condition": 2,
    "no-control-regex": 2,
    "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-parens": 1,
    "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-unexpected-multiline": 2,
    "no-unreachable": 2,
    "use-isnan": 2,
    "valid-jsdoc": 2,
    "valid-typeof": 2,
    "accessor-pairs": 2,
    "array-callback-return": 2,
    "block-scoped-var": 2,
    "complexity": [1, 5],
    "consistent-return": 2,
    "curly": 2,
    "default-case": 2,
    "dot-location": 0,
    "dot-notation": 2,
    "eqeqeq": 2,
    "guard-for-in": 2,
    "no-caller": 2,
    "no-case-declarations": 2,
    "no-div-regex": 2,
    "no-else-return": 2,
    "no-empty-function": [2, {"allow": []}],
    "no-empty-pattern": 2,
    "no-eq-null": 2,
    "no-eval": 2,
    "no-extend-native": 2,
    "no-extra-bind": 2,
    "no-extra-label": 2,
    "no-fallthrough": 2,
    "no-floating-decimal": 2,
    "no-implicit-coercion": 2,
    "no-implicit-globals": 2,
    "no-implied-eval": 2,
    "no-invalid-this": 2,
    "no-iterator": 2,
    "no-labels": 2,
    "no-lone-blocks": 2,
    "no-loop-func": 2,
    "no-magic-numbers": 0,
    "no-multi-spaces": 2,
    "no-multi-str": 2,
    "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": 2,
    "no-process-env": 2,
    "no-proto": 2,
    "no-redeclare": 2,
    "no-return-assign": 2,
    "no-script-url": 2,
    "no-self-assign": 2,
    "no-self-compare": 2,
    "no-sequences": 2,
    "no-throw-literal": 2,
    "no-unmodified-loop-condition": 2,
    "no-unused-expressions": 2,
    "no-unused-labels": 2,
    "no-useless-call": 2,
    "no-useless-concat": 2,
    "no-void": 2,
    "no-warning-comments": [1, { "terms": ["todo", "fixme", "xxx"], "location": "start" }],
    "no-with": 2,
    "radix": 2,
    "vars-on-top": 2,
    "wrap-iife": 2,
    "yoda": 2,
    "no-catch-shadow": 2,
    "no-delete-var": 2,
    "no-label-var": 2,
    "no-shadow": 2,
    "no-shadow-restricted-names": 2,
    "no-undef": 2,
    "no-undef-init": 2,
    "no-unused-vars": 1,
    "no-use-before-define": 2,
    "callback-return": 2,
    "handle-callback-err": 2,
    "no-mixed-requires": 2,
    "no-new-require": 2,
    "no-path-concat": 2,
    "no-process-exit": 2,
    "no-sync": 2,
    "block-spacing": [2, "always"],
    "brace-style": [2, "1tbs", { "allowSingleLine": true }],
    "camelcase": [2, {"properties": "always"}],
    "comma-spacing": [2, {"before": false, "after": true}]
  }
}