JSFiddle - React, Tailwind, and code Playground

HTML

<table id="dates_table">
    <tr>
        <th>Name</th>
        <th>Date of Birth</th>
    </tr>
    <tr>
        <td>Bob</td>
        <td class="date">01/02/2003</td>
    </tr>
    <tr>
        <td>Johnny</td>
        <td class="date">03/02/1980</td>
    </tr>
    <tr>
        <td>Ted</td>
        <td class="date">14/12/2010</td>
    </tr>
    <tr>
        <td>Jane</td>
        <td class="date">08/08/2005</td>
    </tr>
</table>

CSS

#dates_table tr {
    background: #00FF00;
}

#dates_table tr.past {
    background: #FF0000;
}

JavaScript

$(function()
{
    $('#dates_table .date').each(function()
    {
        var row_date = Date.parse($(this).text().replace(/(\d{2})\/(\d{2})\/(\d{4})/, '$2/$1/$3'));
        var now_date = new Date().getTime();
        if(row_date < now_date)
        {
            $(this).parent('tr').addClass('past');
        }
    }
    );
}
);