.eslintrc

{
  "extends": "airbnb",
  "parser": "babel-eslint",
  "parserOptions": {
    "sourceType": "module",
    "ecmaVersion": 6,
    "ecmaFeatures": {
      "spread": true
    }
  },
  "env": {
    "es6": true,
    "node": true
  },
  "rules": {
    // Style
    "indent": ["error", 4],
    "quotes": [2, "double"],
    "comma-dangle": ["error", "never"],
    "no-param-reassign": 0,
    "no-shadow": ["warn"],
    "max-len": ["error", 200],
    // Possible errors
    "no-cond-assign": [2],
    "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-character-class": [2],
    "no-empty": [2],
    "no-ex-assign": [2],
    "no-extra-boolean-cast": [2],
    "no-extra-parens": [0],
    "no-extra-semi": [2],
    "no-func-assign": [2],
    "no-inner-declarations": [2],
    "no-invalid-regexp": [2],
    "no-irregular-whitespace": [2],
    "no-obj-calls": [2],
    "no-prototype-builtins": [0],
    "no-regex-spaces": [2],
    "no-sparse-arrays": [2],
    "no-template-curly-in-string": [0],
    "no-unexpected-multiline": [2],
    "no-unreachable": [2],
    "no-unsafe-finally": [2],
    "no-unsafe-negation": [0],
    "use-isnan": [2],
    "valid-jsdoc": [0],
    "valid-typeof": [2],
    // Node.js and CommonJS
    "callback-return": [0],
    "global-require": [0],
    "handle-callback-err": [2],
    "import/prefer-default-export": [0],
    "no-mixed-requires": [0],
    "no-new-require": [2],
    "no-path-concat": [2],
    "no-plusplus": [0],
    "no-process-env": [0],
    "no-process-exit": [0],
    "no-restricted-modules": [0],
    "no-restricted-properties": [0],
    "no-sync": [0],
    // es6
    "arrow-body-style": [0],
    "arrow-parens": [2, "as-needed"],
    "arrow-spacing": [2],
    "constructor-super": [2],
    "generator-star-spacing": [2],
    "no-class-assign": [2],
    "no-confusing-arrow": [2, { "allowParens": true }],
    "no-const-assign": [2],
    "no-dupe-class-members": [2],
    "no-duplicate-imports": [2],
    "no-new-symbol": [2],
    "no-restricted-imports": [0],
    "no-this-before-super": [2],
    "no-useless-computed-key": [2],
    "no-useless-constructor": [2],
    "no-useless-rename": [2],
    "no-var": [0],
    "prefer-arrow-callback": [2],
    "prefer-const": [2],
    "prefer-numeric-literals": [0],
    "prefer-reflect": [0],
    "prefer-rest-params": [0],
    "prefer-spread": [0],
    "prefer-template": [2],
    "require-yield": [2],
    "rest-spread-spacing": [2],
    "sort-imports": [0],
    "symbol-description": [0],
    "template-curly-spacing": [2],
    "yield-star-spacing": [2]
  }
}