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？或者需要转义的字符？

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

不。任何有效的字符串都是有效的密钥。只要你逃脱它，它甚至可以：

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

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

你或许有机会将这些值加载到某些语言时会遇到困难，这些语言尝试将键与对象字段名称相关联。但我不知道任何此类情况。

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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