Review系列面向对象new

Posted 2021-06-27 Smile沛沛

面向对象new

(function(){
  function _new(){
  	//let obj = Object.create(this.prototype)下面两句的简写
    let obj = new Object();
    obj.__proto__ = this.prototype;
    obj.apply(this,arguments)
    return obj;
  }
  Function.prototype._new = _new;
})()