Hands-On Full-Stack Web Development with ASP.NET Core

Extending interfaces

Just like in .NET, interfaces can extend one another:

interface Serializable {    serialize(): string;}interface PersistedCalculable extends Calculable, Serializable {    shouldSaveInHistory: boolean;}

In the preceding example, the PersistedCalculable interface extends two interfaces. In addition to its own members, it includes all the members defined in the extended interfaces, Calculable and Serializable.