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Explain reactive patterns in Angular with RxJS operators.

Expert JavaScript
Quick Answer RxJS operators in Angular: switchMap (cancel previous inner observable รขโ‚ฌโ€ search), mergeMap (run all in parallel รขโ‚ฌโ€ fire and forget), concatMap (serial, queue all รขโ‚ฌโ€ order matters), exhaustMap (ignore new while in-flight รขโ‚ฌโ€ form submit). pipe(debounceTime(300), distinctUntilChanged(), switchMap(search)) is the classic typeahead pattern.

Answer

Operators like map, filter, switchMap, mergeMap, debounceTime enable data transformation, cancellation, concurrency control, and clean async flows in Angular applications.

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