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JavaScript

JavaScript JSON

JSON securely transports text data across the internet.

Read Time

5 min read

Difficulty

Beginner

Last Updated

Jun 15, 2026

Version

v1.0.0

Introduction

JSON stands for JavaScript Object Notation. It looks exactly like a JavaScript object, but it is just plain text. Because it is plain text, any programming language can read it, making it the perfect format for sending data between a server and a web page.

Example

1/* this parses JSON */
2let jsonText = '{"name":"John", "age":30}';
3let userObj = JSON.parse(jsonText);
4console.log(userObj.name);

Key Points

`JSON.parse()` converts a JSON string into a JavaScript object.
`JSON.stringify()` converts a JavaScript object into a JSON string.
JSON data requires double quotes around names and values.
It cannot store functions or date objects directly.

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