javascript - Swap multiple rows at same time using Jquery -


i have list of items , want set order of items in list. if select multiple items @ same multiple items should move respectively or down.

i using code move , down. in case if first , third item selected returns false because adding check if previous current item null should not move , if next current not available should not move down.

$('#selectedtab tr').each(function () {              var currenttr = $(this).find('td.backgroundcolor').parent();             if (currenttr.text() == null) {             }             else {                 debugger;                 var previoustr = "";                 if (obj.value == "move up") {                     previoustr = currenttr.prev();                     //if (previoustr.length == 0)                     //    return false;                 }                 else {                     previoustr = currenttr.next();                     if (previoustr.length == 0)                         return false;                 }                 var temp = currenttr.contents().detach();                 currenttr.append(previoustr.contents());                 previoustr.append(temp);             }          });

and html

` 

        <table id="unselectedtab" style="width: 100%">             <tr>                 <td>                     <img src="~/images/employees.png" />employee</td>             </tr>             <tr>                 <td>                     <img src="~/images/vehicles.png" />vehicle</td>             </tr>             <tr>                 <td>                     <img src="~/images/collision.png" />collision</td>             </tr>             <tr>                 <td>                     <img src="~/images/trailers.png" />trailers</td>             </tr>             <tr>                 <td>                     <img src="~/images/dispatch.png" />dispatch</td>             </tr>             <tr>                 <td>                     <img src="~/images/notifications.png" />notifications</td>             </tr>             <tr>                 <td>                     <img src="~/images/equipment.png" />equipment</td>             </tr>         </table>     </td>

`

thanks prince chopra


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