JSFiddle - React, Tailwind, and code Playground

HTML

<table id="table1">
    <tr>
        <td>row 1</td>
    </tr>
    <tr>
        <td>row 2</td>
    </tr>
    <tr>
        <td>row 3</td>
    </tr>
    <tr>
        <td>row 4</td>
    </tr>
    <tr>
        <td>row 5</td>
    </tr>
    <tr>
        <td>row 6</td>
    </tr>
    <tr>
        <td>row 7</td>
    </tr>
    <tr>
        <td>row 8</td>
    </tr>
    <tr>
        <td>row 9</td>
    </tr>
    <tr>
        <td>row 10</td>
    </tr>
</table>

JavaScript

$(function () {
    console.log($('tr').eq(1));
    console.log($('tr').eq('e'));
    console.log($('tr').eq(-1));
});