title: Uncaught TypeError: Cannot set property 'data' of null datatables laravel
body: <p>i want to reload data in datatables after i delete it using ajax. i checked the database and the item was deleted,but datatables won't refresh and it returns this error </p>
  
  <blockquote>
    <p>Uncaught TypeError: Cannot set property 'data' of null datatables
    laravel</p>
  </blockquote>
  
  <p>also, i got this message from the alert</p>
  
  <blockquote>
    <p>DataTables warning: table id=table1 - Invalid JSON response. For more
    information about this error, please see <a href="http://datatables.net/tn/1" rel="nofollow noreferrer">http://datatables.net/tn/1</a></p>
  </blockquote>
  
  <p>this is the code : </p>
  
  <p>jquery : </p>
  
  <pre><code>var tab= jQuery('#table1').DataTable({
      "columns": [
       null,
       null,
       null,
       { "width": "15%" }
     ]
    });
  
  function getPageData() {
          jQuery.ajax({
              url: 'attend/f',
            type: 'GET',
            success: function(data){
               tab.ajax.reload();
          }
        });
      }
  
      jQuery(".btndelete").click(function(e){
        jQuery.ajaxSetup({
                headers: {
                    'X-CSRF-TOKEN': '{{ csrf_token() }}'
                }
            });
        var id= jQuery(this).data('id');
        e.preventDefault();
        swal({
          title: 'Are you sure?',
          text: "You won't be able to revert this!",
          type: 'warning',
          showCancelButton: true,
          confirmButtonColor: '#3085d6',
          cancelButtonColor: '#d33',
          confirmButtonText: 'Yes, delete it!'
        }).then(function () {
  
          jQuery.ajax({
            dataType: 'json',
            type: 'delete',
            url: 'attend/' + id + '/delete',
          }).done(function(data){
            getPageData();
          });
  
        })
      });
  </code></pre>
  
  <p>route : </p>
  
  <pre><code>public function attend1($id)
  {
    $acara = \App\Model\MyEventList::where('id_user',$id)-&gt;get();
    return response()-&gt;json();
  }
  </code></pre>