Angular & Signals (283 Qs)•Part 2: HttpClient, RxJS Observables & Angular Elements (36 - 62)
What is an observable?
An Observable is a unique Object similar to a Promise that can help manage async code. Observables are not part of the JavaScript language so we need to rely on a popular Observable library called RxJS. The observables are created using new keyword.
Let see the simple example of observable,
javascript
import { Observable } from 'rxjs';
const observable = new Observable(observer => {
setTimeout(() => {
observer.next('Hello from a Observable!');
}, 2000);
});