JSFiddle - React, Tailwind, and code Playground

HTML

<table id="foo">
    <tbody>
        <tr>
            <td>Foo</td>
        </tr>
    </tbody>
</table>

JavaScript

var tbody = document.getElementById("foo").getElementsByTagName("tbody")[0],
    row = document.createElement("tr"),
    cell = document.createElement("td")
    ;
tbody.appendChild(row);
row.appendChild(cell);
cell.innerHTML = "Bar";