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当new一个构造函数时内部发生了什么 #57

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zhuguly-zz opened this issue Jul 31, 2020 · 0 comments

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zhuguly-zz commented Jul 31, 2020

创建一个临时的空对象{} tmpObj
执行构造函数，其中对 this 的操作就是对 tmpObj 的操作
函数执行完毕返回 tmpObj
把 tmpObj 赋值给 new 的新对象

题目来自饥人谷

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