Check out a free preview of the full Reactive Angular 2 with ngrx course:
The "Observables Demonstration Q&A" Lesson is part of the full, Reactive Angular 2 with ngrx course featured in this preview video. Here's what you'd learn in this lesson:

Scott spends a few minute answering audience questions about the observables example he just created. He also explains the need for the flatMap() operator.

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