JavaScript Object Notation (JSON)

 

JavaScript Object Notation (JSON)

JSON is a data representation format used for:

  • Storing data (Client/Server)
  • Exchanging data between Client and Server

1.1 Supported Types

  • Number
  • String
  • Boolean
  • Array
  • Object
  • Null

1.2 JS Object vs JSON Object

In JSON, all keys in an object must be enclosed with double-quotes. While in JS, this is not necessary.

JS:

let profile = {
name: "Rahul",
age: 29,
designation: "Web Developer"
};
JAVASCRIPT

JSON:

let profile = {
"name": "Rahul",
"age": 29,
"designation": "Web Developer"
};
JAVASCRIPT

1.3 JSON Methods

1.3.1 JSON.stringify()

It converts the given value into JSON string.

Syntax:

JSON.stringify( value )

1.3.2 JSON.parse()

It parses a JSON string and returns a JS object.

Syntax:

JSON.parse( string )

Try out the JSON Methods in the below Code Playground.

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