JSFiddle - React, Tailwind, and code Playground
HTML
<table border="1">
<tr>
<th>Header 1</th>
<th>Header 2</th>
</tr>
<tr>
<td>row 2, cell 1</td>
<td>row 2, cell 2</td>
</tr>
</table>JavaScript
$("table tr:first").after("<tr><td>row 1, cell 1</td><td>row 1, cell 2</td></tr>")