js[] = $js; } protected function addCssFile(string $css): void { $this->css[] = $css; } protected function render(string $view, array $data = []) { $menu = config("menu"); $css_files = $this->css; $js_files = $this->js; return view($view, compact('menu'), compact(['css_files', 'js_files']), compact('data') ); } }