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深拷贝那里有点问题 #21

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hua03 opened this issue May 8, 2021 · 0 comments

hua03 commented May 8, 2021 •

edited

深拷贝那里，不能直接将result赋值为空对象，这样会破坏对象的原型链，而且修改了对象。
可以改成这样：

result = new obj.constructor()

利用原对象的构造函数生成新对象，然后用for in 循环给对象添加属性。不过这种方式也存在弊端，如果构造函数需要接收参数做计算，就会导致执行时报错。

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