.eslintrc.json

{
  "root": true,
  "parser": "espree",
  "parserOptions": {
    "ecmaVersion": 6,
    "sourceType": "script",
    "ecmaFeatures": {}
  },
  "plugins": [],
  "env": {
    "node": true,
    "es6": true
  },
  "globals": {},
  "rules": {

    // Possible Errors (fully reviewed 2016-05-04)

    "comma-dangle": [2, "never"],
    "no-cond-assign": [2, "except-parens"],
    "no-console": 0,
    "no-constant-condition": 2,
    "no-control-regex": 2,
    "no-debugger": 2,
    "no-dupe-args": 2,
    "no-dupe-keys": 2,
    "no-duplicate-case": 2,
    "no-empty": [2, { "allowEmptyCatch": false }],
    "no-empty-character-class": 2,
    "no-ex-assign": 2,
    "no-extra-boolean-cast": 2,
    "no-extra-parens": [2, "all"],
    "no-extra-semi": 2,
    "no-func-assign": 2,
    "no-inner-declarations": [2, "both"],
    "no-invalid-regexp": 2,
    "no-irregular-whitespace": [2, { "skipComments": false }],
    "no-negated-in-lhs": 2,
    "no-obj-calls": 2,
    "no-regex-spaces": 2,
    "no-sparse-arrays": 2,
    "no-unexpected-multiline": 2,
    "no-unreachable": 2,
    "no-unsafe-finally": 2,
    "use-isnan": 2,
    "valid-jsdoc": 0,
    "valid-typeof": 2,

    // Best Practices

    "accessor-pairs": [2, { "setWithoutGet": false, "getWithoutSet": false }],
    "no-magic-numbers": [2, { "ignore": [0,1], "ignoreArrayIndexes": true, "enforceConst": true, "detectObjects": true }],

    // Strict Mode (fully reviewed 2016-05-04)

    "strict": [2, "safe"],

    // Variables (fully reviewed 2016-05-04)

    "init-declarations": [2, "always"],
    "no-catch-shadow": 0,
    "no-delete-var": 2,
    "no-label-var": 2,
    "no-restricted-globals": 0,
    "no-shadow": [2, { "builtinGlobals": false, "hoist": "all", "allow": [] }],
    "no-shadow-restricted-names": 2,
    "no-undef": [2, { "typeof": true }],
    "no-undef-init": 2,
    "no-undefined": 2,
    "no-unused-vars": [2, { "vars": "local", "args": "none", "caughtErrors": "none" }],
    "no-use-before-define": [2, { "functions": false, "classes": true }],

    // Node.js and CommonJS (fully reviewed 2016-05-04)

    "callback-return": 0,
    "global-require": 0,
    "handle-callback-err": 2,
    "no-mixed-requires": 0,
    "no-new-require": 2,
    "no-path-concat": 2,
    "no-process-env": 2,
    "no-process-exit": 2,
    "no-restricted-modules": 0,
    "no-sync": 2,

    // Stylistic Issues

    "no-plusplus": [2, { "allowForLoopAfterthoughts": false }],
    "semi": [2, "never"],

    // ECMAScript 6 (fully reviewed 2016-05-04)

    "arrow-body-style": 0,
    "arrow-parens": [2, "always"],
    "arrow-spacing": [2, { "before": true, "after": true }],
    "constructor-super": 2,
    "generator-star-spacing": [2, "before"],
    "no-class-assign": 2,
    "no-confusing-arrow": [2, { "allowParens": true }],
    "no-const-assign": 2,
    "no-dupe-class-members": 2,
    "no-duplicate-imports": 0,
    "no-new-symbol": 2,
    "no-restricted-imports": 0,
    "no-this-before-super": 2,
    "no-useless-computed-key": 2,
    "no-var": 2,
    "object-shorthand": [2, "always"],
    "prefer-arrow-callback": [2, { "allowNamedFunctions": true }],
    "prefer-const": 0,
    "prefer-reflect": [2, { "exceptions": ["delete"] }],
    "prefer-rest-params": 2,
    "prefer-spread": 2,
    "prefer-template": 2,
    "require-yield": 2,
    "sort-imports": 0,
    "template-curly-spacing": [2, "always"],
    "yield-star-spacing": [2, "before"]

  }
}