JSON 密钥名称中哪些字符有效/无效? [英] Which characters are valid/invalid in a JSON key name?

问题描述

对于 JavaScript 对象或 JSON 字符串，键名中是否有任何禁用字符?还是需要转义的字符?

Are there any forbidden characters in key names, for JavaScript objects or JSON strings? Or characters that need to be escaped?

更具体地说，我想在键名中使用$"、-"和空格.

To be more specific, I'd like to use "$", "-" and space in key names.

推荐答案

没有.任何有效的字符串都是有效的键.它甚至可以有 " 只要你转义它:

No. Any valid string is a valid key. It can even have " as long as you escape it:

{"The "meaning" of life":42}

在将此类值加载到某些尝试将键与对象字段名称相关联的语言中时，您可能会遇到困难.不过，我不知道有任何这样的案例.

There is perhaps a chance you'll encounter difficulties loading such values into some languages, which try to associate keys with object field names. I don't know of any such cases, however.

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