.eslintrc

{
  "settings" : {
    "ecmascript": 6
  },
  "env": {
    "node": true
  },
  "ecmaFeatures": {
    "blockBindings": true,
    "forOf": true,
    "defaultParams": true,
    "globalReturn": false,
    "modules": true,
    "objectLiteralShorthandMethods": true,
    "objectLiteralShorthandProperties": true,
    "templateStrings": true,
    "spread": true,
    "jsx": true,
    "arrowFunctions": true,
    "classes": true
  },
  "rules": {
    // Possible Errors
    "no-extra-boolean-cast": 1,
    "comma-dangle": [2, "never"],
    "no-empty": 1,
    "no-extra-parens": [2, "functions"],
    // Best Practices
    "no-unused-expressions": 1,
    "no-multi-spaces": 2,
    "curly": 2,
    "eqeqeq": 2,
    "guard-for-in": 2,
    "wrap-iife": 0,
    "no-caller": 2,
    "no-new": 2,
    // Stylistic Issues
    "no-underscore-dangle": 0,
    "camelcase": 0,
    "new-cap": 2,
    "quotes": 0,
    "no-trailing-spaces": 2,
    "key-spacing": [1, {
      "beforeColon": false,
      "afterColon": true
    }],
    "indent": [2, 4],
    "brace-style": [2, "1tbs"],
    "comma-spacing": [2, {"before": false, "after": true}],
    "comma-style": [2, "last"],
    "consistent-this": [1, "self"],
    "eol-last": 1,
    "new-parens": 2,
    "no-array-constructor": 2,
    "no-mixed-spaces-and-tabs": 2,
    "no-multiple-empty-lines": 2,
    "no-spaced-func": 1,
    "padded-blocks": [2, "never"],
    "semi": [2, "always"],
    "space-after-keywords": [2, "always"],
    "space-infix-ops": 2,
    "array-bracket-spacing": [2, "never"],
    "object-curly-spacing": [2, "never"],
    // Variables
    "no-use-before-define": [1, "nofunc"],
    "no-unused-vars": 1,
    "no-undef": 1,
    // Strict Mode
    "strict": 0,
    // Legacy
    "no-bitwise": 1,
    "no-plusplus": 0,
    "max-params": [2, 7],
    "max-len" : [1, 120]
  }
}