JSFiddle - React, Tailwind, and code Playground

HTML

<table><tr><td id="__TABLE__">0</td><td>END</td></tr></table>

JavaScript

var str = '<td>1</td><td>2</td>';
    var tdElement = document.getElementById('__TABLE__');
    var trElement = tdElement.parentNode;
    trElement.removeChild(tdElement);
    trElement.innerHTML = str + trElement.innerHTML;