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面试之函数 #15

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sundjly opened this issue Mar 25, 2019 · 0 comments

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面试

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sundjly commented Mar 25, 2019

如何编写高质量的函数 -- 敲山震虎篇 ---详细介绍了函数中底层知识：
总结如下：

创建函数，开辟堆内存，以字符串存入函数体，将函数名（变量）的值变为函数体堆内存中地址。
执行函数，将存储的字符串函数体复制一份到新开辟的栈内存中，使其变为真正的 JS 代码

为什么是栈呢？先进后出（有递归能力）可以很好的保存和恢复调用现场

sundjly added the 面试 label

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