JSFiddle - React, Tailwind, and code Playground

HTML

<button id="clickme">Click me!</button>
<p>Clicked <span id="clicked">100</span> time(s)</p>

JavaScript

var countclicks = (function() {
    var clicks = 100;
    var clicked = document.getElementById('clicked');
    
    //document.getElementById('clickme').addEventListener('click', clickHandler);
    setInterval(clickHandler, 1000);

    function clickHandler () {
        clicks++;
        clicked.innerHTML = clicks;
    }

})();