JSFiddle - React, Tailwind, and code Playground

HTML

<ul id="whatson">
    <li><span class="chkdate">06/03</span> somestuff1</li> 
    <li><span class="chkdate">06/04</span> somestuff1</li> 
    <li><span class="chkdate">06/05</span> somestuff2</li>
</ul>

JavaScript

$(document).ready(function() {
var d = new Date();
var month = d.getMonth()+1;
var day = d.getDate();

var todaysdate = (month<10 ? '0' : '') + month + '/' + (day<10 ? '0' : '') + day;
    $('#whatson li').each(function(){
        var datetocheck = $(this).text();
        if (datetocheck < todaysdate) {
            $(this).hide();
            }         
    });
})