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GitHub
9 年
JavaScript深入之执行上下文栈 #4
试想当 JavaScript 开始要解释执行代码的时候,最先遇到的就是全局代码,所以初始化的时候首先就会向执行上下文栈压入一个全局执行上下文,我们用 globalContext 表示它,并且只有当整个应用程序结束的时候,ECStack 才会被清空,所以程序结束之前, ECStack 最底部永远有个 globalContext: ...
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