> For the complete documentation index, see [llms.txt](https://mitudegaoyang.gitbook.io/j/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mitudegaoyang.gitbook.io/j/webtips/deepclone.md).

# 深度克隆的方法

原文链接：<https://www.zhihu.com/question/23031215/answer/31944721>

```
var cloneObj = function(obj){
    var str, newobj = obj.constructor === Array ? [] : {};
    if(typeof obj !== 'object'){
        return;
    } else if(window.JSON){
        str = JSON.stringify(obj), //系列化对象
        newobj = JSON.parse(str); //还原
    } else {
        for(var i in obj){
            newobj[i] = typeof obj[i] === 'object' ? 
            cloneObj(obj[i]) : obj[i]; 
        }
    }
    return newobj;
};
```