本文介绍了“名称"有什么特别之处?JavaScript中的变量?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
在"Chrome开发者工具"窗口中,输入:
In the Chrome Developer Tools window, I typed in:
> name = ["a", "b", "c"] ["a", "b", "c"]但是, name 变成了一个字符串:
However, name became a string:
> typeof name "string" > name "a,b,c" > name[1] ","对于其他变量名显然不是这样!
This obviously isn't true for other variable names!
> foo = ["a", "b", "c"] ["a", "b", "c"] > typeof foo "object" > foo[1] "b"name 被定义为页面加载时的空字符串(据我所知,不能成为字符串以外的任何东西).
And name is defined as the empty string on page load (and, as far as I can tell, cannot become anything other than a string).
那么, name 怎么了?
推荐答案键入 name 时,您隐式引用 window.name ,根据MDN:
When you type name you are implicitly referencing window.name, which according to MDN:
获取/设置窗口名称.
Gets/sets the name of the window.
developer.mozilla/en-US/docs/Web/API/window.name
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“名称"有什么特别之处?JavaScript中的变量?
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