JSFiddle - React, Tailwind, and code Playground

HTML

<div id="cookiebox">
<input onclick="myFunction()" type="image" src="https://upload.wikimedia.org/wikipedia/commons/e/ec/Happy_smiley_face.png" height=100 width=100 class="cookie" />
</div>
<div id="cookieNumber"></div>

JavaScript

var cookies = 0;
myFunction = () => {
     cookies = cookies + 1;
     console.log(cookies);
     var test = document.getElementById("cookieNumber").innerHTML = cookies;
}