What is an observable

What is an observable

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Lymcode
·

1 min read

An Observable is basically a function that can return a stream of values either synchronously or asynchronously to an observer over time. The consumer can get the value by calling subscribe() method. Let's look at a simple example of an Observable

import { Observable } from 'rxjs';

const observable = new Observable(observer => {
  setTimeout(() => {
    observer.next('Message from a Observable!');
  }, 3000);
});

observable.subscribe(value => console.log(value));

observables.png

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