Check out a free preview of the full Reactive Angular 2 with ngrx course:
The "Challenge 1 Solution Part 1" 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:

Lukas begins walking through the solution to challenge 1. In the first part, he adds the @Input and @Output decorators and verifies the data is source is working.

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