Summary
Recap the topics covered in this chapter.
We'll cover the following
In this chapter, we have explored parts of the RxJS library and the fundamental concept of Observables that it provides.
We can distill the key takeaways from this chapter into the following:
-
We have seen how we can create Observables easily using the
of
andfrom
functions, as well as how we can transform values emitted from an Observable stream using thepipe
,map
,take
,toArray
,mergeMap
, andcontactMap
functions. -
We also explored error handling through the error function available on a subscription, and how to handle errors within an Observable stream using the
catchError
function. -
We then explored how to wait for multiple Observable streams to complete with the
forkJoin
function and rounded out the chapter with a discussion onSubjects
and an implementation of a simple event bus.
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