<form class="delete" action="{{action('Asset\GarduController@destroy', $Gardu['id_gardu'])}}" method="post">
            {{csrf_field()}}
            <input name="_method" type="hidden" value="DELETE">
             <input type="hidden" name="_token" value="{{ csrf_token() }}" />
            <button class="btn btn-danger" type="submit">Delete</button>
          </form>
          @endforeach
        </td>

      </tr>
      @endforeach
    </tbody>
  </table>
 @endsection

<script>
    $(".delete").on("submit", function(){
        return confirm("Do you want to delete this item?");
    });
</script>