https://www.abn.ne/media/plg_system_debug/js/debug.js?cff8c9

1/**
2 * @copyright   (C) 2018 Open Source Matters, Inc. <https://www.joomla.org>
3 * @license     GNU General Public License version 2 or later; see LICENSE.txt
4 */
5
6(document => {
7
8  // Selectors used by this script
9  const debugSectionTogglerSelector = '.dbg-header';
10  const toggleTargetAttribute = 'data-debug-toggle';
11
12  /**
13   * Toggle an element by id
14   * @param id
15   */
16  const toggle = id => {
17    document.getElementById(id).classList.toggle('hidden');
18  };
19
20  /**
21   * Register events
22   */
23  const registerEvents = () => {
24    document.querySelectorAll(debugSectionTogglerSelector).forEach(toggler => {
25      toggler.addEventListener('click', event => {
26        event.preventDefault();
27        toggle(toggler.getAttribute(toggleTargetAttribute));
28      });
29    });
30  };
31  document.addEventListener('DOMContentLoaded', registerEvents);
32})(document);