What You Have Learned

In this lesson, you have:

• Learned the benefits of loosely coupled architecture (pages 258–259)

• Dispatched events (pages 259–263)

• Declared events for a component (pages 263–265)

• Identified the need for your own event classes (pages 265–266)

• Created and used an event subclass (pages 266–270)

• Learned about event bubbling (pages 270–275)

• Created the ProductEvent class (pages 276–281)

• Used ProductEvent to add and remove a product from the cart (pages 281–283)

• Used CollectionEvent to update the cart total (pages 283–285)