javascript - Clone last column and add it to the same table - jquery -

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i want create new column in html table @ end different header name , empty cells. table haa alternate rows colored.

i trying :

<!doctype html> <html> <head>     <title>testing</title>     <script type="text/javascript" src="jquery-1.11.2.js"></script>     <script type="text/javascript">      function add() {         $('#tableid tr').clone().appendto('#tableid');     }      </script>  </head> <body>  <table id="tableid">     <tr>         <th>one</th>         <th>two</th>     </tr>     <tr>         <td>1</td>         <td>2</td>     </tr>     <tr>         <td>3</td>         <td>4</td>     </tr>     <tr>         <td>5</td>         <td>6</td>     </tr> </table> <button onclick="add()">add</button> </body> </html>

what changes need make achieve while keeping alternate colors? td elements have meta data them keep too.

if mean cloning row, that's pretty straightforward:

$("#add").on("click", function(){     $('#tableid tr:last').clone().appendto('#tableid'); });

if want add column, requires bit more work, have append <td></td> each <tr> in table, so:

$("#clone").on("click", function(){     $("#tableid tr").each(function(){         $(this).append("<td>test</td>");     }); });

see jsfiddle see how both work.

keep in mind example. have determine if row contains <th> , change content accordingly, idea.


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