On css-tricks David Khourshid wrote a good introduction to RxJS.

According to ReactiveX.io: "ReactiveX is a library for composing asynchronous and event-based programs by using observable sequences." That's a lot to digest in a single sentence. In this article, we're going to take a different approach to learning about RxJS (the JavaScript implementation of ReactiveX) and Observables, by creating reactive animations.


If you want to toy around with the same ideas in PHP check out RxPHP