Top of Form Bottom of Form 1. What is RxJS, and how is it used in Angular? RxJS (Reactive Extensions for JavaScript) is a library for reactive programming using Observables. It is extensively used in Angular for handling asynchronous data streams and events, such as HTTP requests, user interactions, or WebSocket messages. RxJS allows developers to work with asynchronous data using operators like map, filter, switchMap, mergeMap, etc. Angular leverages RxJS in components, services, and other parts of the application, especially for handling HTTP requests and reactive forms. 2. What are Observables in RxJS and how do they work in Angular? An Observable is a core concept in RxJS. It represents a collection of future values or events. In Angular, an Observable is typically used to handle asynchronous operations like HTTP requests. Components subscribe to an Observable to get the values emitted by it. When an Observable emits a value, all subscribers are notified. Angular ...