JSFiddle - React, Tailwind, and code Playground

HTML

<table>    
<tr class="test"><td class="tes">2</td></tr>
<tr class="test"><td class="tes">Jedi Armor2</td ></tr>    
</table>

CSS

.greenBg {
    background: green;
}

JavaScript

$('table .test .tes').each(function(x) {
    var r = $(this).text(); 
    if(r=="2") 
    {
    $('table').find(".test").eq(x).addClass('greenBg');
    }
 });