JSFiddle - React, Tailwind, and code Playground

by visva

HTML

<table border="2">
    <tr><td>test1</td></tr>
     <tr><td>test1</td></tr>
     <tr><td>test1</td></tr>
</table>

JavaScript

$(document).ready(function(){
     $('table tr:nth-child(1)').after('<tr><td>test2</td></tr>');
});