手写js实现instanceof效果

<script>
    //手写js实现instanceof效果
    function Instanceof(left, right) {
      //获取到对象的原型
      let proto = Object.getPrototypeOf(left)
      //获取到右侧的protoype对象
      let prototype = right.prototype

      while (true) {
        //如果不在对象原型上，返回false
        if (!proto) return false
        //如果左右两侧都在类型一样，返回true
        if (proto === prototype) return true
        //没有找到，继续往上找，直到null为止
        proto = Object.getPrototypeOf(proto)
      }
    }
    console.log(Instanceof([], Array));//true
    console.log(Instanceof([], Object));//true
    console.log(Instanceof(1, Number));//true
  </script>