JSFiddle - React, Tailwind, and code Playground
HTML
<td>RTT</td>
<td>REMOVE ME 2</td>
<td>REMOVE ME 3</td>
<div>RTT</div>
<div>REMOVE ME 2</div>
<div>REMOVE ME 3</div>
JavaScript
var donotcountS = 'td:contains(RTT)';
var donotcountO = 'div:contains(RTT)';
$('body').find("td:not("+donotcountS+")").remove();
$('body').find("div:not("+donotcountO+")").remove()