.eslintrc.json

{
  "rules": {
    "consistent-return": 0,
    "curly": 2,
    "dot-notation": 2,
    "eqeqeq": 2,
    "guard-for-in": 2,
    "indent": [2, 2, {"SwitchCase": 1}],
    "linebreak-style": [2, "unix"],
    "new-cap": 1,
    "no-caller": 2,
    "no-catch-shadow": 2,
    "no-console": 0,
    "no-else-return": 2,
    "no-extend-native": 2,
    "no-extra-bind": 2,
    "no-eval": 2,
    "no-implicit-coercion": 2,
    "no-implied-eval": 2,
    "no-invalid-this": 2,
    "no-irregular-whitespace": 2,
    "no-labels": 2,
    "no-lone-blocks": 2,
    "no-lonely-if": 1,
    "no-loop-func": 2,
    "no-multi-spaces": 1,
    "no-multiple-empty-lines": 1,
    "no-native-reassign": 2,
    "no-nested-ternary": 2,
    "no-new": 2,
    "no-new-func": 2,
    "no-new-require": 2,
    "no-new-wrappers": 2,
    "no-return-assign": 2,
    "no-self-compare": 2,
    "no-sequences": 2,
    "no-shadow": 2,
    "no-shadow-restricted-names": 2,
    "no-throw-literal": 2,
    "no-undef": 2,
    "no-undef-init": 1,
    "no-unreachable": 2,
    "no-unused-expressions": 2,
    "no-useless-call": 2,
    "no-with": 2,
    "quotes": [2, "single"],
    "semi": [2, "always"],
    "space-before-blocks": 2,
    "space-in-parens": [2, "never"],
    "vars-on-top": 2,
    "yoda": [2, "never"]
  },
  "env": {
    "mocha": true,
    "node": true,
    "es6": true
  },
  "extends": "eslint:recommended",
  "parserOptions": {
    "ecmaVersion": 2018
  }
}