JSFiddle - React, Tailwind, and code Playground

HTML

<table id="testtable">
    <tbody>
        <tr data-record-key="0">
            <td>ALL</td>
        </tr>
        <tr data-record-key="1">
            <td>ONE</td>
        </tr>
    </tbody>
</table>

JavaScript

$("#testtable").find("tbody tr").each(function () {
    console.log($(this).data("record-key"));
});