JSFiddle - React, Tailwind, and code Playground
HTML
<table id="table">
<tr id="tr">
<td>Some Text</td>
</tr>
</table>
<input id="hidden" type="hidden" />
JavaScript
$('#tr').hover(
function(){
$('#hidden').val($('#tr > td').text());
$('#tr > td').text('Some Other Text');
},
function(){
$('#tr > td').text($('#hidden').val());
});