javascript - How to use jQuery to select this parent? -

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i have recursive menu need children items effect parent. in example below, how add "selected" class if of children have "selected" class?

<ul>     <li class="administration first">         <a href="/administration.aspx"><span>administration</span></a>         <ul>             <li class="users first selected"><a href="/administration/users.aspx"><span>users</span></a></li>             <li class="forms last"><a href="/administration/forms.aspx"><span>forms</span></a></li>         </ul>         <div style="clear: both;"></div>     </li>     <li class="analytics"><a href="/analytics.aspx"><span>analytics</span></a></li>     <li class="options"><a href="/options.aspx"><span>options</span></a></li>     <li class="system last"><a href="/system.aspx"><span>system</span></a></li> </ul>

use parents method filter parent list elements.

$('li.selected').parents('li').addclass('selected');

an example


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