参考网址：http://bijian1013.iteye.com/blog/2255037

jQuery.extend() 函数用于将一个或多个对象的内容合并到目标对象。



注意：1. 如果只为$.extend()指定了一个参数，则意味着参数target被省略。此时，target就是jQuery对象本身。通过这种方式，我们可以为全局对象jQuery添加新的函数。
2. 如果多个对象具有相同的属性，则后者会覆盖前者的属性值。


 




 <!DOCTYPE html>

 <html lang="en">

 <head>

     <meta charset="UTF-8">

     <title>$.extend()浅拷贝深拷贝</title>

     <script src="http://apps.bdimg.com/libs/jquery/1.8.1/jquery.min.js"></script>

 </head>

 <body>

 <!--参考网址：http://bijian1013.iteye.com/blog/2255037-->

 <script type="text/javascript">

     $(function () {

         var list = function () {

             this.a = {

                 name : 'zhangshan',

                 age : 28,

                 company : {

                     name : '腾讯',

                     address : '深圳',

                     size : 10000

                 }

             };

             this.b={

                 name : 'lisi',

                 age : 30,

                 company : {

                     name : '阿里巴巴',

                     address : '杭州'

                 },

                 stature : '172cm'

             };

             this.show = function (c) {

                 console.log('a:' + JSON.stringify(this.a));

                 console.log('b:' + JSON.stringify(this.b));

                 console.log('c:' + JSON.stringify(c));

                 console.log('\n')

             }

         };

         /*浅拷贝*/

         q1();

         q2();

         q3();

         /*深拷贝*/

         s1();

         s2();

         s3();

         s4();

         function q1() {

             var q1 = new list;

             var c = $.extend(q1.a,q1.b);

             q1.show(c);

 //            a:{"name":"lisi","age":30,"company":{"name":"阿里巴巴","address":"北京"},"stature":"172cm"}

 //            b:{"name":"test","age":30,"company":{"name":"阿里巴巴","address":"北京"},"stature":"172cm"}

 //            c:{"name":"lisi","age":30,"company":{"name":"阿里巴巴","address":"北京"},"stature":"172cm"}

         };

         function q2() {

             var q2 = new list;

             var c = $.extend(q2.a,q2.b);

             q2.b.name = 'test';

             q2.b.company.address = '北京';

             q2.show(c);

 //            a:{"name":"lisi","age":30,"company":{"name":"阿里巴巴","address":"北京"},"stature":"172cm"}

 //            b:{"name":"test","age":30,"company":{"name":"阿里巴巴","address":"北京"},"stature":"172cm"}

 //            c:{"name":"lisi","age":30,"company":{"name":"阿里巴巴","address":"北京"},"stature":"172cm"}

         };

         function q3() {

             var q3 = new list;

             var c = $.extend({},q3.a,q3.b);

             q3.show(c);

 //            a:{"name":"zhangshan","age":28,"company":{"name":"腾讯","address":"深圳","size":10000}}

 //            b:{"name":"lisi","age":30,"company":{"name":"阿里巴巴","address":"杭州"},"stature":"172cm"}

 //            c:{"name":"lisi","age":30,"company":{"name":"阿里巴巴","address":"杭州"},"stature":"172cm"}

         };

         function s1() {

             var s1 = new list;

             var c = $.extend(true,s1.a,s1.b);

             s1.show(c);

 //            a:{"name":"lisi","age":30,"company":{"name":"阿里巴巴","address":"杭州","size":10000},"stature":"172cm"}

 //            b:{"name":"lisi","age":30,"company":{"name":"阿里巴巴","address":"杭州"},"stature":"172cm"}

 //            c:{"name":"lisi","age":30,"company":{"name":"阿里巴巴","address":"杭州","size":10000},"stature":"172cm"}

         };

         function s2() {

             var s2 = new list;

             var c = $.extend(true,s2.a,s2.b);

             s2.b.name = 'test';

             s2.b.company.address = '北京';

             s2.show(c);

 //            a:{"name":"lisi","age":30,"company":{"name":"阿里巴巴","address":"杭州","size":10000},"stature":"172cm"}

 //            b:{"name":"test","age":30,"company":{"name":"阿里巴巴","address":"北京"},"stature":"172cm"}

 //            c:{"name":"lisi","age":30,"company":{"name":"阿里巴巴","address":"杭州","size":10000},"stature":"172cm"}

         };

         function s3() {

             var s3 = new list;

             var c = $.extend(true,{},s3.a,s3.b);

             s3.show(c);

 //            a:{"name":"zhangshan","age":28,"company":{"name":"腾讯","address":"深圳","size":10000}}

 //            b:{"name":"lisi","age":30,"company":{"name":"阿里巴巴","address":"杭州"},"stature":"172cm"}

 //            c:{"name":"lisi","age":30,"company":{"name":"阿里巴巴","address":"杭州","size":10000},"stature":"172cm"}

         };

         function s4() {

             var s4 = new list;

             var c = $.extend(true,{},s4.a,s4.b);

             s4.a.name = 'zhangshan01';

             s4.b.name = 'lisi01';

             s4.b.company.address = 'shengzhen';

             s4.show(c);

 //            a:{"name":"zhangshan01","age":28,"company":{"name":"腾讯","address":"深圳","size":10000}}

 //            b:{"name":"lisi01","age":30,"company":{"name":"阿里巴巴","address":"shengzhen"},"stature":"172cm"}

 //            c:{"name":"lisi","age":30,"company":{"name":"阿里巴巴","address":"杭州","size":10000},"stature":"172cm"}

         };

     })

 </script>

 </body>

 </html>


												


												


随机推荐
	

    
									
  1. Android中广播接收者BroadcastReceiver详解
			
    1. 接收系统的广播步骤 (1)  新建一个类继承BroadcastReceiver 以监听sd卡状态的广播接收者为例 public class SdCardBroadcastReceiver ext ...
    
			
    2. 
						
  2. 从无到有-在create-react-app基础上接入react-router、redux-saga
			
    搭建项目框架 新建项目 执行如下代码,用create-react-app来建立项目的基础框架,然后安装需要用到的依赖. $ npx create-react-app my-test-project $ ...
    
			
    3. 
						
  3. 【WCF系列】（四）WCF客户端怎么消费服务
			
    WCF客户端怎么消费服务 获取服务绑定协议.绑定和地址:实现方式 SvcUtil方式:SvcUtil.exe是一个命令行工具,位于:C:\Program Files (x86)\Microsoft S ...
    
			
    4. 
						
  4. leetcode — best-time-to-buy-and-sell-stock-iii
			
    /** * Source : https://oj.leetcode.com/problems/best-time-to-buy-and-sell-stock-iii/ * * * Say you h ...
    
			
    5. 
						
  5. C#线程安全使用（三）
			
    在讲CancellationTokenSource之前我决定先讲一下lock和Interlocked,如果能很好的理解这两个,再去理解CancellationTokenSource就会方便很多,由于我 ...
    
			
    6. 
						
  6. 微信小程序实现瀑布流布局
			
    前言 最近在做微信小程序,有一个图片列表页面,想通过瀑布流方式来实现,个人比较喜欢这种效果 先看实现效果图 实现原理及代码 将布局分为两列,我们可以使用flex设置 displex:flex 然后每列 ...
    
			
    7. 
						
  7. “/"应用程序中的服务器错误
			
    运行ASP.NET MVC项目时,出现了如下错误: 在网上搜索了很久并没有找到有用的答案,后来请朋友看了一下,最后改了端口号才运行成功,错误应该是之前的端口号被占用导致的.
    
			
    8. 
						
  8. Android项目刮刮奖详解（三）
			
    Android项目刮刮奖详解(二) 前言 上一期我们已经实现了一个简易的刮刮卡功能,这一期我们来将其完善一下 目标 将刮刮奖的宽高改为合适高度 将刮刮奖位置居中 将信息层的图片换成文字(重点) 实现  ...
    
			
    9. 
						
  9. css中“~”和“>”
			
    css中“~” element1~element2 选择器匹配  出现在   element1 后面的    element2  .element1 和 element2 这两种元素必须具有相同的父元 ...
    
			
    10. 
						
  10. 弹框在UC浏览器或者Android机器上会被顶上去
			
    弹框在UC浏览器或者Android机器上会被顶上去 可以通过监听resize事件 this.height = $(document).height(); window.addEventListener ...
    
			
    11.