基础学习: Symbol.toStringTag

代码

class ValidatorClass {
  get [Symbol.toStringTag]() {
    return 'Validator';
  }
}

console.log(Object.prototype.toString.call(new ValidatorClass()));
// Expected output: "[object Validator]"
// 如果没有这个则返回 "[object Object]"

参考

• https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/toStringTag
• https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol#well-known_symbols