“名称"有什么特别之处?JavaScript中的变量? [英] What's special about the "name" variable in JavaScript?

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.

https://developer.mozilla.org/en-US/docs/Web/API/window.name

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