使用变量“name”不适用于JS对象 [英] Using the variable "name" doesn't work with a JS object

问题描述

可以在这个小片段中看到行为（将其作为全局脚本执行）：

The behaviour can be seen in this little snippet (execute it as a global script):

var name = {};
name.FirstName = 'Tom';
alert(name.FirstName);

警告在Chrome中产生 undefined 但是有效在IE和Firefox中。当我这样做时，我也会得到一个奇怪的值

The alert yields undefined in Chrome but works in IE and Firefox. I also get a weird value when I do

alert(name);

推荐答案

window.name 有一个特殊用途，应该是一个字符串。 Chrome似乎明确地将其转换为字符串，因此 var name = {}; 实际上最终会给出全局变量 name （即 window.name ）值[object Object]。由于它是原始的，属性（ name.FirstName ）不会坚持。

window.name has a special purpose, and is supposed to be a string. Chrome seems to explicitly cast it to a string, so var name = {}; actually ends up giving the global variable name (i.e. window.name) a value of "[object Object]". Since it's a primitive, properties (name.FirstName) won't "stick."

绕过这个问题，不要将 name 用作全局变量。

To get around this issue, don't use name as a global variable.

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