sorting disable in datatable bootstrap

<table id="example" class="table table-striped table-bordered" style="width:100%">
  <thead>
    <tr>
      <th>Name</th>
      <th>Position</th>
      <th>Office</th>
      <th>Age</th>
      <th>Start date</th>
      <th>Salary</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>Tiger Nixon</td>
      <td>System Architect</td>
      <td>Edinburgh</td>
      <td>61</td>
      <td>2011/04/25</td>
      <td>$320,800</td>
    </tr>
    <!-- More rows here -->
  </tbody>
</table>

<script>
  $(document).ready(function () {
    $('#example').DataTable({
      "ordering": false
    });
  });
</script>