JSFiddle - React, Tailwind, and code Playground

by dactivo

HTML

<table>
    <tr id="tr_level_1"><td>...</td></tr>
<tr id="tr_level_2"><td>...</td></tr>
<tr id="tr_level_3"><td>...</td></tr>
<tr id="tr_level_4"><td>...</td></tr>
<tr id="tr_level_5"><td>...</td></tr>
</table>

JavaScript

var levels = 3;

if($("table tr").length<levels){
 //the code here for less than levels
    alert("less");
}
else
{

$("table tr:gt("+(levels-1)+")").remove();
    
}