js print object as json

1var obj = {
2  a: 1,
3  b: 2,
4  c: { d: 3, e: 4 } // object in object
5};
6
7// method 1 - simple output
8console.log(JSON.stringify(obj)); // {"a":1,"b":2,"c":{"d":3,"e":4}}
9
10// method 2 - more readable output
11console.log(JSON.stringify(obj, null, 2)); // 2 - indent spaces. Output below
12/*
13{
14  "a": 1,
15  "b": 2,
16  "c": {
17    "d": 3,
18    "e": 4
19  }
20}
21*/

1str = JSON.stringify(obj);
2str = JSON.stringify(obj, null, 4); // (Optional) beautiful indented output.
3console.log(str); // Logs output to dev tools console.
4alert(str); // Displays output using window.alert()