how i get selected class of li in jquery

1<ul id="attached_deals_tab">
2    <li class="active"></li>
3    <li></li>
4    <li>
5        <ul>
6            <li class="active"></li>
7            <li></li>
8        </ul>
9    </li>
10</ul>
11
12<!--jquery code-->
13$('#attached_deals_tab li.active');
14
15