.eslintrc.json

{
  "extends": "google",
  "plugins": [
    "jsdoc"
  ],
  "env": {
    "browser": true,
    "node": true,
    "mocha": true,
    "es6": true,
    "amd": true
  },
  "parserOptions": {
    "ecmaVersion": 8
  },
  "rules": {
    "indent": [
      "warn",
      2,
      {
        "FunctionDeclaration": { "parameters": "first" },
        "FunctionExpression": { "parameters": "first" },
        "SwitchCase": 1
      }
    ],
    "max-len": ["warn", {
      "code": 120,
      "tabWidth": 2,
      "ignoreComments": false
    }],
    "linebreak-style": ["warn", "unix"],
    "require-jsdoc": [
      "warn",
      {
        "require": {
          "FunctionDeclaration": true,
          "ClassDeclaration": true
        }
      }
    ],
    "jsdoc/check-param-names": 1,
    "jsdoc/newline-after-description": 1,
    "jsdoc/require-description-complete-sentence": 1,
    "jsdoc/require-param": 1,
    "jsdoc/require-param-description": 1,
    "jsdoc/require-returns-description": 1,
    "valid-jsdoc": ["warn", {
      "prefer": { "return": "returns" },
      "preferType": {
        "object": "Object",
        "number": "Number",
        "int": "Number",
        "string": "String",
        "boolean": "Boolean",
        "array": "Array",
        "function": "Function"
      },
      "requireReturn": false,
      "requireReturnType": true,
      "requireParamDescription": true,
      "requireReturnDescription": true
    }],
    "object-curly-spacing": ["warn", "always"],
    "generator-star-spacing": ["warn", { "before": false, "after": false }],
    "space-before-blocks": [
      "warn",
      "always"
    ],
    "padding-line-between-statements": [
      "warn",
      { "blankLine": "always", "prev": "*", "next": "return" },
      { "blankLine": "always", "prev": "*", "next": "if" },
      { "blankLine": "always", "prev": "*", "next": "for" },
      { "blankLine": "always", "prev": "*", "next": "while" }
    ],
    "no-trailing-spaces": [
      "warn",
      { "skipBlankLines": true }
    ],
    "eqeqeq": "off",
    "no-implicit-coercion": "off",
    "brace-style": ["warn", "stroustrup", { "allowSingleLine": true }],
    "no-else-return": "off",
    "radix": "off",
    "max-nested-callbacks": "off",
    "arrow-parens": "off",
    "eol-last": "off",
    "quote-props": "off",
    "default-case": "off",
    "camelcase": "off",
    "no-unused-expressions": "off",
    "no-return-assign": "off",
    "no-negated-condition": "off",
    "no-new": "off",
    "no-lonely-if": "off",
    "dot-notation": "off",
    "array-callback-return": "off",
    "no-var": "warn",
    "comma-dangle": ["error", "never"],
    "require-yield": "error",
    "yield-star-spacing": ["warn", "after"],
    "require-await": "error",
    "no-useless-escape": "off"
  }
}