Summary

Observables offer a flexible set of APIs for composing and transforming asynchronous streams. They provide a multitude of functions to create streams from many other types, and to manipulate and transform them. We've taken a look at how Angular uses Observables to create streams from many other types to read user input, perform asynchronous data fetches and set up custom emit/subscribe routines.

• ​rxjs 45.x to v6 migration​

• ​rxjs Observable API​

• ​Which operator do I use?​

• ​rxmarbles​

• ​RxJS Operators by Example​