javascript mvc patetern
PenguinController.prototype.initialize = function initialize() {
this.penguinView.onClickGetPenguin = this.onClickGetPenguin.bind(this);
};
PenguinController.prototype.onClickGetPenguin = function onClickGetPenguin(e) {
var target = e.currentTarget;
var index = parseInt(target.dataset.penguinIndex, 10);
this.penguinModel.getPenguin(index, this.showPenguin.bind(this));
};