How to convert data string to Json?

Question

JavaScript

How can I convert this string to Json?

user_name=at&password=3

JSON.parse doesn't work.
I mean ready-made functions, it is clear that you can parse the symbols.

Answer 1

Do you have url?

var url = new URL(urlString);
var user = url.searchParams.get("user_name");
var pass = url.searchParams.get("password");
var ob = {user_name:user, pass:password}