json encode js

1// To encode an object (This produces a string)
2var json_str = JSON.stringify(myobject); 
3
4// To decode (This produces an object)
5var obj = JSON.parse(json_str);

1var person={"first_name":"Tony","last_name":"Hawk","age":31};
2var personJSONString=JSON.stringify(person); 

1Use the JavaScript function JSON.parse() to convert text into a JavaScript object:
2var obj = JSON.parse('{ "name":"John", "age":30, "city":"New York"}');

1var obj = JSON.parse("{no:'u',my:'sql'}");//returnes {no:'u',my:'sql'}