.eslintrc.json

{
  "extends": ["eslint:recommended", "google"],
  "plugins": [
    "standard",
    "promise"
  ],

  "globals": {
    "console": true,
    "Promise": true,
    "require": true,
    "module": true,
    "exports": true,
    "document": true,
    "navigator": true,
    "window": true
  },

  "parserOptions": {
    "ecmaVersion": 8,
    "sourceType": "module",
    "ecmaFeatures": {
      "experimentalObjectRestSpread": true,
      "jsx": true
    }
  },

  "rules": {
    "semi": [1, "always"],
    "linebreak-style": ["error", "unix"],
    "quotes": [1, "double", { "avoidEscape": true, "allowTemplateLiterals": true }],
    "space-before-function-paren": [0, "never"],
    "indent": [2, 2, { "SwitchCase": 1, "VariableDeclarator": 2, "MemberExpression": 2 }],
    "max-len": [1, {
      "code": 100,
      "tabWidth": 2,
      "ignoreUrls": true,
      "ignorePattern": "^goog\\.(module|require)"
    }],
    "require-jsdoc": [1, {
      "require": {
        "FunctionDeclaration": true,
        "MethodDefinition": true,
        "ClassDeclaration": true
      }
    }],
    "valid-jsdoc": [1, {
      "requireParamDescription": false,
      "requireReturnDescription": false,
      "requireReturn": false,
      "prefer": {"returns": "return"}
    }],
    "no-console": 0,
    "no-multiple-empty-lines": [1, { "max": 3 }],
    "comma-dangle": [2, "never"],
    "arrow-parens": [1, "as-needed", { "requireForBlockBody": false }],
    "one-var": [1, {
      "var": "consecutive",
      "let": "consecutive",
      "const": "consecutive"
    }],
    "keyword-spacing": ["warn", {"overrides": {
      "if": {"after": false},
      "else": {"before": false},
      "catch": {"before": false, "after": false},
      "for": {"after": false}
    }}],
    "no-unused-vars": [1, {"args": "none"}],
    "no-trailing-spaces": 1,
    "new-cap": 1
  }
}