javascript string to object

Question

How to apply string object value to a variable Ex.

var str=\'{a:\"www\"}\'

Now how to set

var obj={a:\"www\"}

Answer 1

var str='{"a":"www"}';
var obj = JSON.parse(str);

Answer 2

eval should work, and it's actually a MDN solution, not to mention that your string is not a valid JSON, so eval is your only option (if you don't want to include a library for that).

var str='{a:"www"}';
var obj=eval("("+str+")");
console.log(obj);

Quick test in Chrome Dev Tool:

eval("("+'{a:"www"}'+")")
Object
    a: "www"
    __proto__: Object

Just remember to wrap your string in parenthesis and assign it outside eval and it'll be (relatively) safe.