Today, I’d like to focus on data streams resulting from click events on the user interface. The processing of such clickstreams is particularly useful for applications with an intensive user interaction where many events have to be processed. I’d also like to introduce you to RxJS a bit more; it’s a JavaScript library that can be used to express event handling routines compactly and concisely in a reactive style.

https://www.smashingmagazine.com/2020/01/card-matching-game-angular-rxjs/