json.md

layout	editorial
chapter	11
pageNumber	82
description	JSON (JavaScript Object Notation) is a lightweight data interchange format used to represent and exchange data between different systems and platforms. It is widely used for data transmission and storage, especially in web development.

Chapter 11

JSON

JavaScript Object Notation (JSON) is a text-based format for storing and transporting data. The Javascript Objects can be easily converted into JSON and vice versa. For example.

//  a JavaScript object
let myObj = { name:"Ryan", age:30, city:"Austin" };

// converted into JSON:
let myJSON = JSON.stringify(myObj);
console.log(myJSON);
// Result: '{"name":"Ryan","age":30,"city":"Austin"}'

//converted back to JavaScript object
let originalJSON = JSON.parse(myJSON);
console.log(originalJSON);

// Result: {name: 'Ryan', age: 30, city: 'Austin'}

stringify and parse are the two methods supported by JSON.

Method	Description
parse()	Returns JavaScript object from the parsed JSON string
stringify()	Returns JSON string from JavaScript Object

The following data types are supported by JSON.

• string
• number
• array
• boolean
• object with valid JSON values
• null

It can not be function, date or undefined.