javascript - maintain sequence of a Ul Li list -

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i have ul li list has option sort , move elements , down. requirement once user sorts elements in desired fashion want able save sequence in db well.

is possible me array contains id li , index of position of li.

eg. in case, when value = 9 , index should 0,
value = 11, index = 1 etc.

sample html rendered is:

 <ul id="ul_li_subcategories" style="width:200px;" class="chargecapturetable margin0">     <li sequence="1" title="category 1" class="liellipsis" value="9"><a href="#"><span class="viewicons delfacename _delete fl"></span>category 1</a></li>     <li sequence="2" title="category 3" class="liellipsis" value="11"><a href="#"><span class="viewicons delfacename _delete fl"></span>category 3</a></li>     <li sequence="4" title="category 4" class="liellipsis" value="12"><a href="#"><span class="viewicons delfacename _delete fl"></span>category 4</a></li>     <li sequence="5" title="category 6" class="liellipsis" value="22"><a href="#"><span class="viewicons delfacename _delete fl"></span>category 6</a></li>     <li sequence="6" title="category 5" class="liellipsis" value="13"><a href="#"><span class="viewicons delfacename _delete fl"></span>category 5</a></li>     <li sequence="7" title="category 7" class="liellipsis" value="55"><a href="#"><span class="viewicons delfacename _delete fl"></span>category 7</a></li>     <li sequence="99999" title="category 8" class="liellipsis" value="62"><a href="#"><span class="viewicons delfacename _delete fl"></span>category 8</a></li> </ul>

get array contains id li , index of position of li.

.map() can used in conjunction .attr()

var arr = $('#ul_li_subcategories li').map(function (elem) {     return {         value : $(this).attr('value'),         index : $(this).index()     } }).get(); 

$(function() {    var arr = $('#ul_li_subcategories li').map(function(elem) {      return {        value: $(this).attr('value'),        index: $(this).index()      }    }).get();        console.log(arr)  });
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>  <ul id="ul_li_subcategories" style="width:200px;" class="chargecapturetable margin0">    <li sequence="1" title="category 1" class="liellipsis" value="9"><a href="#"><span class="viewicons delfacename _delete fl"></span>category 1</a>    </li>    <li sequence="2" title="category 3" class="liellipsis" value="11"><a href="#"><span class="viewicons delfacename _delete fl"></span>category 3</a>    </li>    <li sequence="4" title="category 4" class="liellipsis" value="12"><a href="#"><span class="viewicons delfacename _delete fl"></span>category 4</a>    </li>    <li sequence="5" title="category 6" class="liellipsis" value="22"><a href="#"><span class="viewicons delfacename _delete fl"></span>category 6</a>    </li>    <li sequence="6" title="category 5" class="liellipsis" value="13"><a href="#"><span class="viewicons delfacename _delete fl"></span>category 5</a>    </li>    <li sequence="7" title="category 7" class="liellipsis" value="55"><a href="#"><span class="viewicons delfacename _delete fl"></span>category 7</a>    </li>    <li sequence="99999" title="category 8" class="liellipsis" value="62"><a href="#"><span class="viewicons delfacename _delete fl"></span>category 8</a>    </li>  </ul>


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