.eslintrc.json

{
  "env": {
    "browser": true,
    "es6": true
  },
  "extends": "eslint:recommended",
  "parserOptions": {
    "sourceType": "module"
  },
  "rules": {
    "indent": ["error", 2],
    "linebreak-style": ["error", "unix"],
    "no-trailing-spaces": ["error"],
    "quotes": ["error", "double"],
    "require-jsdoc": ["error", {
      "require": {
        "FunctionDeclaration": true,
        "MethodDefinition": true,
        "ClassDeclaration": false,
        "ArrowFunctionExpression": true,
        "FunctionExpression": true
      }
    }],
    "valid-jsdoc": ["error", {
      "prefer": {
        "arg": "param",
        "argument": "param",
        "return": "returns"
      },
      "requireParamDescription": false,
      "requireReturnDescription": false,
      "requireParamType": true,
      "requireReturn": false
    }],
    "semi": ["error", "always"]
  }
}