访问密钥空间的javascript对象 [英] access javascript object with space in key

问题描述

我有一个javascript对象看起来像这样：

I have a javascript object that looks something like this:

myTextOptions: {
    'cartoon': {
        comic: 'Calvin & Hobbes',
        published: '1993'
    },
    'character names': {
        kid: 'Calvin',
        tiger: 'Hobbes'
    }
}

我可以使用轻松访问卡通属性myTextOptions.cartoon.comic 或者其他什么。但是，我无法获得访问 kid 的语法。我试过以下没有运气：

I can access the cartoon properties easily using myTextOptions.cartoon.comic or whatever. However, I haven't been able to get the syntax right for accessing kid. I've tried the following with no luck:

myTextOptions.character names.kid
myTextOptions."character names".kid
myTextOptions.character\ names.kid
myTextOptions.'character names'.kid
myTextOptions.["character names"].kid
myTextOptions.character%20names.kid

推荐答案

使用ECMA脚本括号表示法：

Use ECMAscripts "bracket notation":

myTextOptions[ 'character names' ].kid;

您可以使用该表示法，阅读和放大写作。

You can use that notation either way, reading & writting.

有关详细信息，请参阅此处：

For more information read out here:

• https://developer.mozilla.org/en-US/docs/Web/JavaScript / Guide / Working_with_Objects

• https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_Objects

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