Image Caching / Preloading

img-preloader.js

function imgPreloader () {

    this.images = new Array();

    this.addImages = function(images) {

      var self = this;

      if(!images) return;

      if(Array.isArray(images)) {
        images.forEach(function (ele) {
          var _image = new Image();
          _image.src = ele;
          self.images.push(_image);
        });
      }
    };

    return this;
  }