JSON Tutorial for Beginners | JSON Syntax Rules? | Part-2

JSON Tutorial for Beginners | JSON Syntax Rules? | Part-2













JSON Syntax Rules ??

What is JSON?

    JSON stands for JavaScript Object Notation
    JSON is lightweight data interchange format
    JSON is language independent *
    JSON is "self-describing" and easy to understand

* The JSON syntax is derived from JavaScript
object notation syntax, but the JSON format is text only.
Code for reading and generating
JSON data can be written in any programming language.

JSON Syntax Rules

    Data is in name/value pairs
    Data is separated by commas
    Curly braces hold objects
    Square brackets hold arrays

 JSON Data - A Name and a Value

JSON data is written as name/value pairs.

A name/value pair consists of a field name (in double quotes),
follo
wed by a colon, followed by a value:

Example
"name":"John"

JSON - Evaluates to JavaScript Objects

The JSON format is almost identical to JavaScript objects.

In JSON, keys must be strings, written with double quotes:
JSON
{ "name":"John" }

In JavaScript, keys can be strings, numbers, or identifier names:
JavaScript
{ name:"John" }


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