JSFiddle - React, Tailwind, and code Playground

HTML

<div class="gridanswers">
     <fieldset id="Fieldset_A">
         <table class="yyyy">
             <tr>
                 <td>Babu</td>
             </tr>
         </table>
     </fieldset>
</div>

JavaScript

$('#Fieldset_A TABLE TBODY TR').after('Srinu');
});