1var str = '{"2003":{"1":{"2":["test"],"3":["test2"]}}}';
2var obj = {"2003":{"1":{"2":["test"],"3":["test2"]}}};
3
4console.log( JSON.stringify(str) ); // {\"2003\":{\"1\":{\"2\":[\"test\"],\"3\":[\"test2\"]}}}
5console.log( JSON.stringify(obj) ); // {"2003":{"1":{"2":["test"],"3":["test2"]}}}
6