.eslintrc.json

{
  "extends": ["google"],
  "env": {
    "es6": true,
    "node": true,
    "mocha": true,
    "browser": true
  },
  "plugins": [
    "html"
  ],
  "rules": {
    "arrow-parens": ["error", "always"],
    "arrow-spacing": "error",
    "comma-dangle": "off",
    "eol-last": "error",
    "indent": ["error", 2, {
      "MemberExpression": 0
      }],
    "keyword-spacing": "error",
    "linebreak-style": ["warn", "unix"],
    "max-len": "off",
    "max-nested-callbacks": "off",
    "new-cap": ["error", {
      "capIsNewExceptions": ["Polymer"]
      }],
    "no-trailing-spaces": "error",
    "no-warning-comments": "warn",
    "require-jsdoc": "off",
    "space-before-blocks": "error",
    "space-before-function-paren": ["error", {
      "anonymous": "never",
      "named": "never",
      "asyncArrow": "never"
      }],
    "space-in-parens": "error",
    "yoda": "off"
  },
  "globals": {
    "Polymer": true
  }
}