RxJS Recipes

on YouTube ↗33m

" summary

Concrete recipes for RxJS with a working demo: a "World of Jokes" app that polls an API every 5s using timer + exhaustMap and shareReplay (the repeater pattern), caches results, and only swaps visible jokes when the user clicks an update (enrichment via withLatestFrom). It shows a notification only after the second refresh (skip(1)), manages settings as a BehaviorSubject + scan, toggles polling with switchMap, and implements retry-on-error vs wait-for-online logic; all patterns are composable and demonstrated live.

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" chapters (17)

1. 0:00Intro
2. 3:36Different Levels of Patterns
3. 4:45World of Jokes
4. 7:31Identifying Patterns
5. 8:40Requirement #1
6. 9:26Application Architecture
7. 11:56Repeater
8. 12:36Requirement #2
9. 15:46Pattern #2
10. 16:15Requirement #3
11. 19:32Group Aggregator
12. 23:21Requirement #4
13. 23:33State Manager
14. 24:09Requirement #5
15. 28:13Pattern #5
16. 28:51Requirement #6
17. 31:45Key Takeaway's

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