JSFiddle - React, Tailwind, and code Playground

HTML

<div id="la">A</div>

JavaScript

function move(event) {
    if (!event) event = window.event;
    // A this már be van állítva  
    console.log('Event', event);
    console.log('This', this);
}
var la = document.getElementById('la');
la.addEventListener("click", move, false);