JSFiddle - React, Tailwind, and code Playground
HTML
<table>
<tr>
<td>some data I don't want.</td>
<td>
<table><tr><td>more data I don't want</td></tr></table>
Text I want to extract here.
</td>
</tr>
</table>
JavaScript
$('tr > td:eq(1) > table').remove();
alert( $('tr > td:eq(1)').text());