:data='@json()' code example

Example: what is JSON

JavaScript Object Notation 
	Its a key value pair 
	its popular light-weight way of transfering data 

	for example : 
	Lets try to create a json for Person Object 
			with name , age , isMarried , gender 

		Its ket value pair 
		the key is always String and need to be in quotation
		value can be :
			String 
			Number 
			Boolean 
			null 
			array 
			another json object


		This is one json with 5 fields 
		each key value pair should be separated by comma 
		{
			"name" 		: "Anna", 
			"age" 		: 18  , 
			"isMarried" : false , 
			"gender"	: "female", 
			"company"	: null 
		}