Van Morrison - October 9, 2018

Introduction to JSON

What is JSON?

JSON is the abbreviation of JavaScript Object Notation, which represents a standardized syntax for storing and sharing data among entities, derived from the JavaScript programming language (not to be confused with the Java programming language).

JSON gained popularity because it is easy to read and edit by humans and also easy to use by machines. Another advantage is that JSON it is not bound to the JavaScript language, it can be used by a wide range of programming language, most notable Java, PHP, Python and Ruby.

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The JSON entity can exist either as a standalone file, usually having the .json extension, or included in another file, inside of quotes, as a JSON string. It can also be assigned to variables.

JSON, compared to XML, offers a better readability, less headache for formatting and has a smaller footprint, causing less bytes to be transferred.


The structure is extremely simple:

“name” : value