code: function() {
  
  			var lastDigit = this.getPrevDigit() ? this.getPrevDigit() : this.digit;
  
  			var html = $([
  				'<ul class="'+this.classes.flip+' '+(this.factory.running ? this.factory.classes.play : '')+'">',
  					this.createListItem(this.classes.before, lastDigit),
  					this.createListItem(this.classes.active, this.digit),
  				'</ul>'
  			].join(''));
  					
  			return html;
  		}
docs: Create the list of digits and appends it to the DOM object