JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdn.datatables.net/r/dt/jq-2.1.4,dt-1.10.9,b-1.0.3,se-1.0.1/datatables.min.js"></script>
<link rel="stylesheet" href="https://cdn.datatables.net/r/dt/jq-2.1.4,dt-1.10.9,b-1.0.3,se-1.0.1/datatables.min.css">
<body>
<table id="example" class="display" cellspacing="0" 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>
 
 <tfoot>
     <tr>
         <th>Name</th>
         <th>Position</th>
         <th>Office</th>
         <th>Age</th>
         <th>Start date</th>
         <th>Salary</th>
     </tr>
 </tfoot>
 
 <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>
     <tr>
         <td>Colleen Hurst</td>
         <td>Javascript Developer</td>
         <td>San Francisco</td>
         <td>39</td>
         <td>2009/09/15</td>
         <td>$205,500</td>
     </tr>
     <tr>
         <td>Sonya Frost</td>
         <td>Software Engineer</td>
         <td>Edinburgh</td>
         <td>23</td>
         <td>2008/12/13</td>
         <td>$103,600</td>
     </tr>
 </tbody>
</table>
</body>
</html>

JavaScript

$(document).ready(function() {
 $('#example').DataTable({
  select: true,
  dom: 'Bfrltip',
  buttons: [
    {
    text: "View Records",
    action: function( e, dt, node, config ) {
     //this works and produces the alert
     //var sData = dt.column(0 , { order: 'current', search: 'applied' } ).data().join();
     //this does not work and in my console indicates that dt.column(...).data(...) is not defined
        var rows = dt.rows( {selected: true} ).indexes();
        var data = dt.cells( rows, 0 ).data();
        
     alert(data.join(' '));
     }
    }
   ]
  });
 });