Question - What is RxJS? / What do you understand by RxJS?
Answer -
RxJS is an acronym that full form is Reactive Extension for Javascript. It is a JavaScript library that uses observables to work with reactive programming and deals with asynchronous data calls, callbacks and event-based programs. RxJS has introduced the concept of "reactive programming" to the web. It implements a reactive extension for TypeScript and JavaScript.
RxJS works as a combination of the observer pattern, iterator pattern and functional programming.
RxJS is a library for reactive programming using Observables to make it easier to compose asynchronous or callback-based code. It is a standalone JavaScript library that gives access to programmers to the Observable.
RxJS can also be used with other JavaScript libraries and frameworks. JavaScript and TypeScript well support it.