Build Reactive Websites with RxJS

Chapter 2Manipulating Streams

In the last chapter, you learned how to create observables with new Observable, along with a few of the helper operators Rx provides. You also peeked into the world of manipulating values in an observable stream with the magic of map. While mapping is a common pattern, the Rx library has many other operators for working with in-stream data. In fact, most Rx work is about manipulating the data as it comes down the stream. This change can be in the form of manipulating the data directly (map), changing the timing of the data (delay), or operating on the observables themselves (takeUntil).

This chapter expands your knowledge of the types of map functions available and adds several new types of operators to your tool ...