lovecoding
/
VIP26


			
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							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
    //     var person = {
    //         name: 'LiLi',
    //         age: 10
    //     }
    //     function deepClone(obj) {
    //         var objs = {};
    //         for(key in obj) {
    //            objs[key] = obj[key]
    //         }
    //         return objs;
    //     }
    //    var news = deepClone(person);
    //    news.name = 'Lucy';
    //    console.log(news,'news')
    //    console.log(person,'person')


        // for循环
        // var arr = [1,2,3,4,5,6];
        // for(key in arr) {
        //     // for in 循环的是数组的下标
        //     console.log(key,'for..in')
        // } 
        // for(key of arr) {
        //     // for of 循环的是数组的值
        //     console.log(key,'for..of')

        // }
    
        var news = {
            name: '小郑',
            age: 10,
            main: {
                address:'china',
                sex: "女"
            }
        }

        function deepClone(obj) {
            // 定义一个空对象 用来接收深克隆后的结果
            var objs = {};
            // for循环传入的对象 循环的是对象下面的每一项
            for(key in obj) {
                // 判断是否是引用数据类型 注意小写
                if(typeof(obj[key]) == 'object') {
                    // 再次调用深克隆方法
                    objs[key] = deepClone(obj[key]);
                }else {
                    // 直接复制
                    objs[key] = obj[key];
                }
            }
            //抛出深克隆后的对象
            return objs;
        }
       var newObjs = deepClone(news);
       newObjs.main.address = "111";
       console.log(news,'2')
       console.log(newObjs,'1')
    </script>
</body>
</html>