Simulate hover using JavaScript events

Question

Is it possible to simulate hover using JavaScript Events? I tried injecting mouseover event on the target element but no luck.

For example, if there is a link that

Answer 1

It is possible to simulate hover using JavaScript events. I created a module for swapping out images on hover. You can experiment and adapt the module to fit your needs. For the example, I made the image paths and DOM selection elements generic.

// module for swapping out images on hover 
var imageSwap = (function ModuleFactory() {

    "use strict";

    var imageContainer = document.getElementById("image-container"),
        image = document.getElementsByClassName("image")[0],
        imageSource1 = 'path/to/your/image1',
        imageSource2 = 'path/to/your/image2';

    function handleImageSwap(e) {
        if (e.target.id === "image-container") {
            image.setAttribute("src", imageSource2);

            e.target.addEventListener("mouseleave", function _handler_() {
                image.setAttribute("src", imageSource1);
                e.target.removeEventListener("mouseleave", _handler_, false);
            }, false);
        }
    }

    function init() {
        imageContainer.addEventListener("mouseenter", handleImageSwap, false);
    }

    var publicAPI = {
        init: init
    };

    return publicAPI;

})();

document.addEventListener("DOMContentLoaded", imageSwap.init(), false);