JSFiddle - React, Tailwind, and code Playground

HTML

<table id="test"><tr><td>bklub</td><td>kwak</td></tr></table>

JavaScript

var operator = "^=";
var value="kwa";

var eCol = document.body.getElements('td')[1];
eCol.set('name',eCol.get('text'))
var e = new Elements([eCol])
console.log(e);
e =e.filter('*[name'+operator+value+']');
console.log(e);