JSFiddle - React, Tailwind, and code Playground

by Jader Wagner

HTML

<table id="table">
    <tr>
        <td>2</td>
    </tr>
    <tr>
        <td>6</td>
    </tr>
    <tr>
        <td>2</td>
    </tr>
    <tr>
        <td>1</td>
    </tr>
</table>

CSS

span {
    font-weight: bold;
    color: blue;
}

JavaScript

$('#table td').each(function (i, e) {
    if ($('[data-numero=' + $(this).text() + ']').length) {
        var numero = $('[data-numero=' + $(this).text() + ']').children('span');
        numero.text( parseInt(numero.text()) + 1 );
    } else {
        $('body').append('<div data-numero="' + $(this).text() + '">Número ' + $(this).text() + ': <span>1</span></div>');
    }
});