JSFiddle - React, Tailwind, and code Playground

HTML

<p>Day: <div id = "day"></div></p>
<p><div id="days_to_go"></div> days to go.</p>
<p><div id="the_end"></div></p>
<p><div id="continue">
<a id="meow">next</a>
</div></p>

JavaScript

$(document).ready(function () {
    var day = 90;
    
    $('#meow').click(function () {
        day = day + 1
        check_date();
        print_date();
    });
    var check_date = function (){
        if (day === 101){
            document.getElementById("the_end").innerHTML = "The End";
            document.getElementById("continue").innerHTML = " ";
        };
    }
    
    var print_date = function () {
        document.getElementById("day").innerHTML = day;
        document.getElementById("days_to_go").innerHTML = (day);
    }
});