JavaScript: JSON.stringify
JSON.stringify(obj)
Convert a JavaScript object to JSON string format.
console.log( JSON.stringify ( {a:3 , b:[4,2]}) ); // prints // {"a":3,"b":[4,2]}
JSON.stringify
takes optional 2nd and 3rd args. For detail, see
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify