Subjecting State to Good Behavior
summary
Shows how to build readable Angular state with RxJS using a private BehaviorSubject and a public observable, immutably updating state via scan and returning new objects so OnPush works. Two demos: a NASA APOD app with a star counter that increments on click and every 200 ms while held, and a Near‑Earth Objects app that performs optimistic updates with a previousState rollback and separate error subject. Code stays small and readable.
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chapters (8)
- 0:00Introduction
- 1:07Why state management libraries
- 3:56Reactive state with RxJS
- 8:08Demo NASA APOD app
- 15:58Optimistic updates concept
- 17:27Demo NASA NEO app
- 26:50Benefits of RxJS state
- 28:37Q&A and resources
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