JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/ui-lightness/jquery-ui.css">

JavaScript

var whatever = {};

whatever["a"] = {};
whatever["a"]["a"] = "test1";
whatever["a"]["b"] = "test2";

whatever["b"] = {};
whatever["b"]["a"] = "test3";
whatever["b"]["b"] = "test4";



$.each(whatever, function(key, value) {
 $.each(value, function(subkey, subvalue) {
    document.write(subvalue);
     document.write('<br>');
 });
});