JSFiddle - React, Tailwind, and code Playground

HTML

<table>
<tr>
  <td class="contact_name" style="padding: 7px 0;">
    Name 1
  </td>
  <td>
      <button class="btn_hide">Hide</button>
  </td>
</tr>
<tr>
  <td class="contact_name" style="padding: 7px 0;">
      Name 2
  </td>
  <td>
      <button class="btn_hide">Hide</button>
  </td>
</tr>
</table>

JavaScript

$('.btn_hide').click(function(){

    alert($(this).closest('td').prev('.contact_name').text());
    
});