JQuery.parseJSON not working with string

Question

I am trying to parse a string into an object. I have looked at the jQueryparseJSON documentation at the following link I\'ve also included the jquery library so I know it\'s

Answer 1

function str2json (str, val, obj) {
var obj = str.indexOf("'") != -1 
          ? JSON.parse(str.replace(/'/g, "\"")) 
          : JSON.parse(str);
    return (val === undefined ? obj /* JSON.stringify(obj) */ : obj[val])
};

str2json("{'val1': 1, 'val2': 2, 'val3': 3}", "val1"); // `1`

str2json("{'val1': 1, 'val2': 2, 'val3': 3}") 
// `obj` : `[object Object]` ,
// `JSON.stringify(obj)` : `{"val1":1,"val2":2,"val3":3}`

jsfiddle http://jsfiddle.net/guest271314/n8jLG/