JSFiddle - React, Tailwind, and code Playground

HTML

<button>Add row</button>

<table id="myTable">
    <tbody>
        <tr>
            <td>1</td>
            <td>John</td>
            <td>654 789 321</td>
        </tr>
    </tbody>
</table>

JavaScript

//Try to get tbody first with jquery children. works faster!
var tbody = $('#myTable').children('tbody');

//Then if no tbody just select your table 
var table = tbody.length ? tbody : $('#myTable');


$('button').click(function(){
    //Add row
    table.append('<tr><td>0</td><td>Hey</td><td>**********</td></tr>');
})