Check out a free preview of the full Reactive Angular 2 course:
The "Observables & Observer Pattern" Lesson is part of the full, Reactive Angular 2 course featured in this preview video. Here's what you'd learn in this lesson:
Lukas reviews the solutions brought by reactive application development: to manage state, control flow, and handle code volume. Then Lukas introduces Observables as a powerful way to encapsulate, transport, and transform data from user interactions into an application.