/**
 * @copyright  (C) 2018 Open Source Matters, Inc. <https://www.joomla.org>
 * @license    GNU General Public License version 2 or later; see LICENSE.txt
 */
document.addEventListener('DOMContentLoaded', () => {

  const title = document.getElementById('jform_title');
  title.dpOldValue = title.value;
  title.addEventListener('change', ({
    currentTarget
  }) => {
    const label = document.getElementById('jform_label');
    const changedTitle = currentTarget;

    if (changedTitle.dpOldValue === label.value) {
      label.value = changedTitle.value;
    }

    changedTitle.dpOldValue = changedTitle.value;
  });
});