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1深克隆

<script type="text/javascript">
    var obj={
        name:"abc",
        age:123,
        card:[' visa','master'],
        wife:{
            name:"bcd",
            son:{
                name:"aaa"
            }
        }
    }
    var obj1={};
    //深克隆


    // 遍历对象 for（ var prop in obj）
    //1.判断是不是原始值  typeof() object
    //2.判断是数组还是对象   instanceof  constructor  toString//--推荐使用：toString
    //3.建立相应的数组或对象
    //递归

    function deepClone(origin,target){
        var target = target || {},
            toStr = Object.prototype.toString,
            arrStr="[object Array]";
        for(var prop in origin){
            if(origin.hasOwnProperty(prop)){//判断是否是直系属性
                if(origin[prop]!=="null" && typeof(origin[prop])=='object'){
                    if(toStr.call(origin[prop])==arrStr){//如果是数组
                        target[prop]=[];
                    }else{//如果是对象
                        target[prop]={};
                    }
                    //递归copy每个数组或对象中的值
                    deepClone(origin[prop],target[prop]);
                }else{
                    target[prop] = origin[prop];
                }
            }
        }
        return target;
    }
</script>

2浅克隆

<script type="text/javascript">
    var obj={
        name:"abc",
        age:123,
        card:[' visa','master'],
        wife:{
            name:"bcd",
            son:{
                name:"aaa"
            }
        }
    }
    var obj1={};

    function clone(origin,target){
        var target = target || {};
        for(var prop in origin){
             if(origin.hasOwnProperty(prop)){//判断是否是直系属性
                    target[prop] = origin[prop];
            }
        }
        return target;
    }
</script>