Why is json allowed

The constant emerging technologies in the world of web development always keeps the excitement for this subject through the roof. But before you tackle the big projects, we suggest you start by learning the basics.

Now at it's lowest price ever! Previous jQuery height and innerHeight with Examples. Next JavaScript Boolean. Recommended Articles. Article Contributed By :. Easy Normal Medium Hard Expert. Writing code in comment? Please use ide. Insignificant whitespace may be present anywhere except within a JSONNumber numbers must contain no whitespace or JSONString where it is interpreted as the corresponding character in the string, or would cause an error.

Parse the string text as JSON, optionally transform the produced value and its properties, and return the value. The reviver option allows for interpreting what the replacer has used to stand in for other datatypes.

Return a JSON string corresponding to the specified value, optionally including only certain properties or replacing property values in a user-defined manner. By default, all instances of undefined are replaced with null , and other unsupported native data types are censored.

How are we doing? Please help us improve Stack Overflow. Take our short survey. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Ask Question. Asked 9 years, 10 months ago. Active 11 months ago. Viewed k times. Improve this question. Steve Chambers Christophe Christophe I think partially this answer has to do with the way you're encoding. You can use any 'key' you want in JS using the obj['whatever'] notation.

But only regular alphanumeric keys can be used for the obj. Add a comment. Active Oldest Votes. Any valid string is a valid key. Improve this answer. Marcelo Cantos Marcelo Cantos k 37 37 gold badges silver badges bronze badges.