Check if slice element has class

Hi,
is there a better way to check if sliced elements has class


var wrapPage = function(items){
    console.log(items.closest('.page-wrapper').length);
 };
wrapPage($panels.hide().slice(0,10).show());

I need that beacuse I want to wrap elemts like


$panels.hide().slice(0,10).show().wrapAll('<div class="page-wrapper" />')

Bye