Frontend\Core\Engine\Header::parseJS PHP Метод

    private function parseJS()
    {
        $jsFiles = array();
        $jsFilesGrouped = array();
        $existingJSFiles = $this->getJSFiles();
        // if there aren't any JS-files added we don't need to do something
        if (!empty($existingJSFiles)) {
            // some files should be cached, even if we don't want cached (mostly libraries)
            $ignoreCache = array('/src/Frontend/Core/Js/Jquery/jquery.js', '/src/Frontend/Core/Js/Jquery/jquery.ui.js');
            foreach ($existingJSFiles as $file) {
                $priorityGroup = $file['priority_group'];
                // some files shouldn't be uncacheable
                if (in_array($file['file'], $ignoreCache) || $file['add_timestamp'] === false) {
                    $file = array('file' => $file['file']);
                } else {
                    // add last modified time
                    $modifiedTime = mb_strpos($file['file'], '?') !== false ? '&m=' . LAST_MODIFIED_TIME : '?m=' . LAST_MODIFIED_TIME;
                    $file = array('file' => $file['file'] . $modifiedTime);
                }
                $jsFilesGrouped[$priorityGroup][] = $file;
            }
            ksort($jsFilesGrouped);
            foreach ($jsFilesGrouped as $jsFile) {
                $jsFiles = array_merge($jsFiles, $jsFile);
            }
        }
        $this->tpl->addGlobal('jsFiles', $jsFiles);
    }