decode json in jquery code example

Example 1: parse json jquery

var obj = JSON.parse('{ "name":"John", "age":30, "city":"New York"}');

Example 2: json_decode jquery

var obj = jQuery.parseJSON( '{ "name": "John" }' );
alert( obj.name === "John" );

Example 3: javascript parse json

var jsonPerson = '{"first_name":"billy", "age":23}';
var personObject = JSON.parse(jsonPerson); //parse json string into JS object