DataTables - columns.render

HTML

<link rel="stylesheet" href="https://cdn.datatables.net/r/dt/dt-1.10.9/datatables.min.css">
<script src="https://cdn.datatables.net/r/dt/dt-1.10.9/datatables.min.js"></script>
<table id="example" class="display" cellspacing="0" width="100%">
  <thead>
    <tr>
      <th>1</th>
      <th>2</th>
      <th>3</th>
      <th>4</th>
      <th>5</th>
      <th>6</th>
      <th>7</th>
      <th>8</th>
      <th>9</th>
    </tr>
  </thead>

</table>

JavaScript

$(document).ready(function() {
  var data = [
    ["5555", "07/17/2010", "RCC Saturday Open", "E10", "Harris,  Fred", "1900", "Nikolayev, Igor (FM)", "2367", "1-0"],
    ["5554", "07/17/2010", "RCC Saturday Open", "B01", "Nikolayev, Igor (FM)", "2367", "Motroni, Richard", "1728", "1-0"]
  ];

  var table = $('#example').DataTable({
    data: data,
    columnDefs: [{
      targets: 0,
      render: function(data, type, row, meta) {
      
        var title = $('#example').DataTable().columns(meta.col).header();
        var columnName = $(title).html();
        console.log(columnName)

        return data;
      }
    }]
  });

});