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Definition: JSON


(JavaScript Object Notation) Pronounced "jay-son" or "jeh-sahn," JSON is a text-based data format that is the lightweight alternative to XML widely used on the Web for data interchange. Although JSON is based on JavaScript syntax, and JavaScript native commands are used to read and write JSON data, JSON is not a JavaScript-only format. It is used like XML in any programming environment, and also like XML, it is human readable. See JSON-LD and BSON.




JSON vs. XML
JSON uses key-value pairs to structure data. This simple "array" example is contrasted with the equivalent XML. See key-value pair.





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