JavaScript parsing JSON instance detailed

PHP generates JSON format

Working with pages

code is as follows: <script src= "Scripts/json.js" ></script>


alert (data.tojsonstring ());

If return false indicates no data

JS Code:

The

code is as follows: Functionshowjson () {


Varuser =


     {  


"username": "Tom",


"Age": 20,


"Info": {"tel": "123456", "cellphone": "98765"},


"Address":


       [  


{"City": "Shanghai", "postcode": "201203"},


{"City": "Suzhou", "postcode": "200000"}


             ]  


     }  


      


alert (user.username);


alert (user.age);


alert (User.info.cellphone);


alert (user.address[0].city);


alert (User.address[0].postcode);


}

Modify

code is as follows: User.username = "Jerry";

You can use Eval to convert JSON characters to object

The

code is as follows: Functionmyeval () {


Varstr = ' {' name ': ' Violet ', ' occupation ': ' character '} ';


varbj = eval (' + str + ');


alert (obj.tojsonstring ());


}

or use the Parsejson () method

copy code code as follows: Functionmyeval () {


varstr = ' {' name ': ' Violet ', ' occupation ': ' character '} ';


VARBJ = Str.parsejson ();


alert (obj.tojsonstring ());


}