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,

import { Observable } from 'rxjs';
const observable = new Observable((observer) => {
setTimeout(() => {
observer.next('Hello from a Observable!');
}, 2000);

April 08, 2022