ESLint rules for ECMAScript 2015

.eslintrc.json

{
  "env": {
    "browser": true,
    "es6": true
  },
  "extends": "eslint:recommended",
  "parserOptions": {
    "ecmaVersion": 2015
  },
  "rules": {
    "no-console": 0,
    "indent": ["error", 2],
    "linebreak-style": ["error", "unix"],
    "quotes": ["error", "single"],
    "semi": ["error", "always"],
    "no-unreachable": "error",
    "no-unused-vars": "off",
    "no-undef": "off"
  }
}