JSFiddle - React, Tailwind, and code Playground

HTML

<table id="Table">
  <th id="a"></th>
  <th id="b"></th>
  
</table>

JavaScript

var someRow = "<tr class='someClass' ><th>text1</th><th>text2</th></tr>"; // add resources
 $("#Table").append(someRow);

 $("#a").each(function () {

     $(this).text("Dummy text")
 })

$("#b").each(function () {

     $(this).text("Dummy text")
 })