code: function unbindListeners() {
  	  if (this && this.eventListeners) {
  	    this.eventListeners.forEach(function (item) {
  	      var element = item.element,
  	          type = item.type,
  	          callback = item.callback,
  	          options = item.options;
  	      element.removeEventListener(type, callback, options);
  	    });
  	    this.eventListeners = [];
  	  }
  	}
docs: Unbind all cached event listeners