RxJS all things!
summary
Compares callbacks, promises and async/await with concrete code snippets and then shows RxJS used end to end: interval (200ms) + take emits cancellable streams, operators like map x10, filter <100 transform values, and retry 3 times (or 10) handles flaky networks. Demonstrates DOM event observables, merge for parallel requests, subscriptions/unsubscribe for cancellation, and marble diagrams for testing. Notes RxJS debugging pain and an in-progress browser extension; shows when observables outperform promises.
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chapters (11)
- 0:00Intro
- 2:27Synchronous
- 3:47Hollywood Principle
- 5:30callbacks
- 7:27promises
- 10:21async await
- 11:27reactive programming
- 13:49observables
- 17:02observers
- 17:34operators
- 22:14challenges
