HTMLTableElement: deleteTFoot() 方法

deleteTFoot()

<table>
  <thead>
    <th>Name</th>
    <th>Score</th>
  </thead>
  <tr>
    <td>Bob</td>
    <td>541</td>
  </tr>
  <tr>
    <td>Jim</td>
    <td>225</td>
  </tr>
  <tfoot>
    <th>Average</th>
    <td>383</td>
  </tfoot>
</table>

let table = document.querySelector("table");
table.deleteTFoot();