JSFiddle - React, Tailwind, and code Playground

HTML

<div id="d1">One</div>
<div id="d2">Two</div>
<div id="d3">Three</div>
<div id="d4">Four <p>This is a <strong>(and bold)</strong> paragraph</p> within a div</div>

JavaScript

which_element_is_the_mouse_on = (function() {
    
    var currentElement;
    
    $("body *").on('mouseover', function(e) {
        currentElement = this;
        e.stopImmediatePropagation();
    });
    
    return function() {
        console.log(currentElement);    
    };
}());


setInterval(which_element_is_the_mouse_on, 1000);