<zk>
    <button label="any event" onClick=""/>
<!--    13.2 sec   <div forEach="${[0,1,2,3,4,5,6,7,8,9, 0,1,2,3,4,5,6,7,8,9]}"> -->
<!--    3.7 sec  <div forEach="${[0,1,2,3,4,5,6,7,8,9]}"> -->
    1.0 sec <div forEach="${[0,1,2,3,4]}">
        <div forEach="${[0,1,2,3,4,5,6,7,8,9]}">
            <combobox width="50px" forEach="${[0,1,2,3,4,5,6,7,8,9]}">
                <comboitem label="yes"/>
                <comboitem label="no"/>
            </combobox>
        </div>
    </div>
</zk>