html - jQuery Simple Vertical Accordion Menu -


how can when click 'item' open , when click again close in vertical accordion menu:

<style>     #nav { float: left; width: 280px; border-top: 1px solid #999; border-right: 1px solid #999; border-left: 1px solid #999; } #nav li { display: block; padding: 10px 15px; background: #ccc; border-top: 1px solid #eee; border-bottom: 1px solid #999; text-decoration: none; color: #000; } #nav li a:hover, #nav li a.active { background: #999; color: #fff; } #nav li ul { display: none; // used hide sub-menus } #nav li ul li { padding: 10px 25px; background: #ececec; border-bottom: 1px dotted #ccc; }     </style>        <ul id="nav">       <li><a href="#">item 1</a>         <ul>           <li><a href="#">sub-item 1 a</a></li>           <li><a href="#">sub-item 1 b</a></li>           <li><a href="#">sub-item 1 c</a></li>         </ul>       </li>       <li><a href="#">item 2</a>         <ul>           <li><a href="#">sub-item 2 a</a></li>           <li><a href="#">sub-item 2 b</a></li>         </ul>       </li>     </ul>   <script type="text/javascript"> $(document).ready(function () {    $('#nav > li > a').click(function(){     if ($(this).attr('class') != 'active'){       $('#nav li ul').slideup();       $(this).next().slidetoggle();       $('#nav li a').removeclass('active');       $(this).addclass('active');     }   }); }); </script>

when click item 1,item 2 open sub menus if click again did not close it.

you need else in jquery catch click if item active

$(document).ready(function () {     $('#nav > li > a').click(function(){      if ($(this).attr('class') != 'active'){        $('#nav li ul').slideup();        $(this).next().slidetoggle();        $('#nav li a').removeclass('active');        $(this).addclass('active');      } else {        $('#nav li ul').slideup();        $('#nav li a').removeclass('active');      }    });  });
#nav li ul {    display: none;  }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>  <ul id="nav">        <li><a href="#">item 1</a>          <ul>            <li><a href="#">sub-item 1 a</a></li>            <li><a href="#">sub-item 1 b</a></li>            <li><a href="#">sub-item 1 c</a></li>          </ul>        </li>        <li><a href="#">item 2</a>          <ul>            <li><a href="#">sub-item 2 a</a></li>            <li><a href="#">sub-item 2 b</a></li>          </ul>        </li>      </ul>


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