anchor.diff:  				break;
   			default:
   				showAll();
  +				return;
   		}
   	}
   
  
positive.code: 		}
  		checkAllCheckboxElement.checked = (complete == todoWidgets.length);
  		var left = todoWidgets.length - complete;
  		countElement.innerHTML = '<b>${left}</b> item${left != 1 ? 's' : ''} left';
  		if (complete == 0) {
  			clearCompletedElement.style.display = 'none';
  		} else {
  
negative.code: 		});
  
  		checkAllCheckboxElement.on.click.add((Event e) {
  			for (TodoWidget todoWidget in todoWidgets) {
  				if (todoWidget.todo.completed != checkAllCheckboxElement.checked) {
  					todoWidget.toggle();
  				}
  			}
  