Answer
Observables represent streams of values over time. RxJS operators like map, filter, and switchMap allow transformation, cancellation, and concurrency control. Angular uses Observables extensively for HTTP, forms, and event streams.
Quick Answer
RxJS Observables represent streams of values over time — synchronous or async. subscribe() starts the stream; operators (map, filter, switchMap, debounceTime) transform it. Observable vs Promise: Observables are cancellable, produce multiple values, and are lazy (start on subscribe). switchMap cancels the previous inner observable when a new value arrives — perfect for search inputs.
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ