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I'm a little bit confused, because some websites tell me JSON is not a markup language like XML, but a few say the opposite. Maybe you can give me some hint?
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Although the developer of JSON declared in 2006 that JSON is not a markup language, it is now often treated as such. The generic JSON is used as the basis for specific formats, which specify names and for more specific syntax for values. Examples include GeoJSON and its extension TopoJSON.
JSON was based on a subset of the JavaScript scripting language (specifically, Standard ECMA-262 3rd Edition—December 1999) and is commonly used with JavaScript, but it is a language-independent data format. Code for parsing and generating JSON data is readily available in many programming languages.
JSON was designed for data interchange and provides a simpler and more concise format for the interchange of data than XML. XML was not designed just for data interchange and provides many other capabilities that JSON does not provide. JSON is ideal for simple data requirements. XML is ideal for the rest.
JSON is faster because it is designed specifically for data interchange. JSON encoding is terse, which requires less bytes for transit. JSON parsers are less complex, which requires less processing time and memory overhead. XML is slower, because it is designed for a lot more than just data interchange.
From Wikipedia:
A (document) markup language is a modern system for annotating a document in a way that is syntactically distinguishable from the text. The idea and terminology evolved from the "marking up" of paper manuscripts, i.e., the revision instructions by editors, traditionally written with a blue pencil on authors' manuscripts.
So, no. JSON is not a Markup Language.
For that matter, nor is XML. Wikipedia describes it as "a meta markup language" since it provides a foundation for creating markup languages on.
JSON is like XML in that it is used to structure data in a text format and is commonly used to exchange data over the Internet.
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