.eslintrc

{
  "parser": "babel-eslint",

  "parserOptions": {
    "ecmaVersion": 6,
    "sourceType": "module",
    "ecmaFeatures": {
      "impliedStrict": true,
      "jsx": true
    }
  },

  "rules": {
    "comma-style": ["error", "last"],
    "curly": ["error"],
    "max-len": ["error", { "code": 80, "tabWidth": 2 }],
    "new-cap": ["error"],
    "no-alert": ["warn"],
    "no-caller": ["error"],
    "no-console": ["off"],
    "no-debugger": ["error"],
    "no-undef": ["error"],
    "no-unused-vars": ["error", { "vars": "all", "args": "after-used" }],
    "no-use-before-define": ["error", { "functions": false, "classes": true }],
    "quotes": ["error", "single"],
    "semi": ["error", "always"],
    "comma-dangle": ["error", "always-multiline"],
    "guard-for-in": ["error"],
    "valid-jsdoc": ["error",
      {
        "prefer": {
          "return": "return"
        },
        "preferType": {
          "String": "string",
          "Number": "number",
          "Boolean": "boolean",
          "object": "Object",
          "array": "Array"
        },
        "requireReturn": false,
        "requireParamDescription": false,
        "requireReturnDescription": false
      }
    ],
    "eqeqeq": ["error"],
    "no-case-declarations": ["error"],
    "no-else-return": ["error"],
    "no-extra-bind": ["error"],
    "no-implicit-coercion": ["error", { "boolean": false }],
    "no-multi-spaces": ["error"],
    "no-throw-literal": ["error"],
    "no-warning-comments": ["error", { "terms": ["todo", "@todo:", "fixme",
      "xxx"] }],
    "arrow-parens": ["error", "always"],
    "arrow-spacing": ["error"],
    "no-var": ["error"],
    "object-shorthand": ["error"],
    "prefer-const": ["error"],
    "prefer-template": ["error"]
  },

  "env": {
    "es6": true,
    "browser": true,
    "worker": true
  },

  "plugins": [
    "react"
  ],

  "extends": ["eslint:recommended", "plugin:react/recommended"]
}