jQuery에서 문자열을 json 객체로 변환시...

http://api.jquery.com/jquery.parsejson/

jQuery.parseJSON() | jQuery API Documentation

api.jquery.com

parseJSON 을 사용하면 되는 건 맞는데!!! 주의 할 점!!!

문서 대강대강 보다가.. 2시간 날림..!!

문자열 만들때..

1 2	var obj = jQuery.parseJSON( '{ "name": "John" }' ); alert( obj.name === "John" );

반드시!!! 쌍따옴표를 써야 한다.. javascript여서.. 홑따옴표로 변형해서 썼더니 절대 안됐음..

설명을 잘 읽어 볼걸......

Passing in a malformed JSON string results in a JavaScript exception being thrown. For example, the following are all invalid JSON strings:

• "{test: 1}" (test does not have double quotes around it).
• "{'test': 1}" ('test' is using single quotes instead of double quotes).
• "'test'" ('test' is using single quotes instead of double quotes).
• ".1" (a number must start with a digit; "0.1" would be valid).
• "undefined" (undefined cannot be represented in a JSON string; null, however, can be).
• "NaN" (NaN cannot be represented in a JSON string; direct representation of Infinity is also not permitted).