JSON密钥是否必须用引号引起来? [英] Do the JSON keys have to be surrounded by quotes?

问题描述

示例: 以下代码对 JSON规范有效吗?

Example: Is the following code valid against the JSON Spec?

{
    precision: "zip"
}

还是我应该始终使用以下语法? (如果是这样，为什么?)

Or should I always use the following syntax? (And if so, why?)

{
    "precision": "zip"
}

我还没有在JSON规范中真正找到有关此的东西.尽管他们在示例中使用了双引号.

I haven't really found something about this in the JSON specifications. Although they use quotes around their keys in their examples.

推荐答案

是的，您需要引号.这是为了使其更简单，并且避免了必须为JavaScript保留关键字使用另一种转义方法，即{for:"foo"}.

Yes, you need quotation marks. This is to make it simpler and to avoid having to have another escape method for javascript reserved keywords, ie {for:"foo"}.

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