Save time avoiding common mistakes using RxJS

51m

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Note: RxJS imports have changed since the publication of this course. Operators now must be passed into .pipe to be applied to an observable.

In this course we will learn to identify common mistakes with RxJS that usually make code harder to read and even introduce bugs. Most of these mistakes are related to Subject, subscribe, and subscriptions. We are going to see how to use only Observables and convenient operators made for solving those mistakes, such as fromEvent, takeUntil and switchMap. By the end of this course, you will have a more immediate intuition on what patterns are simple and safe in RxJS.

Instructor

André Staltz

Open source hacker and former web and mobile developer at Futurice. Andre is known for his involvement with reactive programming for user interfaces, particularly with RxJS. He has built JavaScript libraries and frameworks such as Cycle.js, xstream, react-native-node, and others.

Course content (12 lessons)

1
Convert RxJS Subjects to Observables
4m 7s
2
Replace Observable.create with Observable creation helpers
2m 6s
3
Use takeUntil instead of manually unsubscribing from Observables
3m 52s
4
Convert an underlying source of data into an Observable
3m 54s
5
Use the map operator instead of firing events on a Subject
2m 10s
6
Use flattening operators instead of nested subscriptions
4m
7
Use switchMap to avoid leaks when flattening
3m 4s
8
Replace zip with combineLatest when combining sources of data
3m 1s
9
Move important side effects from do() to subscribe()
4m 30s
10
Implement pause and resume feature correctly through RxJS
5m 48s
11
Know when to extend the Observable class
7m 25s
12
Make Observables hot only where necessary
7m 34s

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Instructor

André Staltz