What is the difference between the "rx" and "rxjs" npm packages?

Question

When trying to figure out how my RxJS import statements work, the presence of the node_modules/rx folder caused some confusion.

Now I am wondering why there are two separate packages at all. From the package descriptions here and here I can't really tell the difference. Is rx maintained by Microsoft and the other by a different community? Are there major differences? A link to a document with an explanation and some advice when to use which of them would be great!

Answer 1

Looking at this link you can find that:

Note: RxJS v5 beta is being developed at https://github.com/ReactiveX/rxjs.

In Short:

• RXJS - v5+
• RX - v4-

More about v5+ can be found here:

This is a rewrite of Reactive-Extensions/RxJS and is the latest production-ready version of RxJS. This rewrite is meant to have better performance, better modularity, better debuggable call stacks, while staying mostly backwards compatible, with some breaking changes that reduce the API surface.