Get text value of td elements

HTML

<table>
    <thead></thead>
    <tbody>
        <tr>
            <td>Value 1</td>
            <td>Value 2</td>
            <td>Value 3</td>
            <td><button id='btn-add'>add</button></td>
        </tr>
    </tbody>
</table>

JavaScript

$(document).ready(function() {
    $("#btn-add").on('click', function() {
        var values = [];
        alert();
        $(this).parent('td').siblings().each(function() {
            values.push($(this).text());
        });
        
        console.log(values);
    });
});