prototype & constructor

dianqiaocu5692

于 2016-04-12 13:58:00 发布

阅读量96

点赞数

原文链接：http://www.cnblogs.com/guojunru/p/5382419.html

版权

本文通过一个具体的示例展示了如何使用JavaScript创建构造函数和原型，以及如何通过构造函数属性访问对象的构造器。深入理解JavaScript中对象的构造和继承机制。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

Examples: Displaying the constructor of an object

The following example creates a prototype, Tree, and an object of that type. The example then displays the constructor property for the object theTree.

function Tree(name) {
  this.name = name;
}

var theTree = new Tree('Redwood');
console.log('theTree.constructor is ' + theTree.constructor);

This example displays the following output:

theTree.constructor is function Tree(name) {
  this.name = name;
}

All objects inherit a constructor property from their prototype.

转载于:https://www.cnblogs.com/guojunru/p/5382419.html