Redux-Observable is a middleware for Redux which handles cancellation and many other asynchronous side effects by using reactive programming. … RxJS and Most.js are two libraries for reactive programming with which you can handle streams of actions in different ways. … In the following examples, Most.js will be used.
Reactive streams are a unified way of dealing with asynchronous events in JavaScript. Learn more in this tutorial with RxJs examples that you can run & modify.