Method core

/**
 * Method to load core.js into the document head.
 *
 * Core.js defines the 'Joomla' namespace and contains functions which are used across extensions
 *
 * @return  void
 *
 * @since   3.3
 *
 * @deprecated 5.0  Use Joomla\CMS\WebAsset\WebAssetManager::enable();
 */
public static function core()
{
    Factory::getApplication()->getDocument()->getWebAssetManager()->useScript('core');
}