Interfaces

5 lessons

• 01InterfacesLearn the alternative way to define object types using the interface keyword.
• 02Extending InterfacesLearn how to use the extends keyword to build a hierarchy of types.
• 03Extending Multiple InterfacesLearn how to compose complex types from multiple base interfaces.
• 04Overriding Interface PropertiesLearn how to refine property types when extending an interface.
• 05Declaration MergingUnderstand the unique behavior where multiple interfaces with the same name are combined.