JSFiddle - React, Tailwind, and code Playground

HTML

<table border="1">
    <tr>
        <td id="list-sort">click me</td>
    </tr>
    <tr>
        <td>1</td><td>2</td><td>3</td><td>4</td><td>5</td><td>6</td>
    </tr>
</table>

JavaScript

$("#list-sort").click(function(){
    $('#list-sort').attr('colspan', function(index, attr){
        return attr == '6' ? null : '6';
    });
});