Simple image preloader

image_preloader.js

/**
 * Preload images
 *
 * @param  {Array} images
 */
window.preload_images = function (images) {
  $(document).ready(function () {
    $.each(images, function (index, image_url) {
      var image = new Image();
      image.src = image_url;
    });
  });