       <td>shown</td>
               <td>This event fires on tab show after a tab has been shown. Use <code>event.target</code> and <code>event.relatedTarget</code> to target the active tab and the previous active tab (if available) respectively.</td>
             </tr>
            </tbody>
          </table>

          <pre class="prettyprint linenums">
$('a[data-toggle="tab"]').on('shown', function (e) {
  e.target // activated tab
  e.relatedTarget // previous tab
})</pre>
       </div>
      </div>
    