.eslintrc.json

{
  "env": {
    "browser": true,
    "es6": true,
    "jasmine": true,
    "node": true
  },
  "extends": [
    "closure-es6",
    "plugin:jasmine/recommended",
    "google"
  ],
  "parserOptions": {
    "sourceType": "module"
  },
  "plugins": [
    "jasmine",
    "closure"
  ],
  "rules": {
    "prefer-rest-params": "off",
    // We don't want this, adds a polyfill
    // This library requires this to be used in methods as part of the API,
    // and sometimes it's useful to reference this in jasmine as there is
    // special handling.
    "no-invalid-this": "off",
    "prefer-spread": "off",
    // As per Tagging ES6 guidelines.
    "indent": "off",
    // Contradicts closure/indent.
    // We use the hasOwn function to validate object properties.
    "guard-for-in": "off",
    // Disable the following two so the expectation object can be returned
    // from custom expect functions
    "jasmine/expect-matcher": "off",
    "jasmine/new-line-before-expect": "off"
  }
}