做错的题目——this的指向

weixin_34015860

于 2016-09-09 09:47:00 发布

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原文链接：http://www.cnblogs.com/dll-ft/p/5855408.html

本文探讨了在JavaScript中使用setTimeout时，无论是否延迟，其内部的函数都是孤立执行的，并且this关键字总是指向全局对象这一特性。文章指出，这种行为不受任何外部对象的影响。

不管延不延时，setTimeout里面的function都是孤立的，并不属于哪一个对象，所以this只会指向全局

转载于:https://www.cnblogs.com/dll-ft/p/5855408.html

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