Observables and RxJS
📘 Angular
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📅 Nov 14, 2025
⏱ Estimated reading time: 1 min
Observables and RxJS
Observables represent asynchronous streams of data. Angular uses RxJS for handling such streams.
Why Observables?
- Handle API responses
- Listen to events
- Manage real-time data
- Powerful operators
Observable Example
import { Observable } from 'rxjs';
const obs = new Observable(sub => {
sub.next('Hello');
sub.complete();
});
Common RxJS Operators
map()filter()switchMap()mergeMap()debounceTime()
Pipe Example
this.http.get('/users')
.pipe(
map(data => data),
filter(user => user.active)
)
.subscribe();
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