RxJS Subjects & Operators: What They Do and When to Use Them

Together, we build an Angular course application to enhance your knowledge of RxJS, Observables and Reactive Programming

RxJS Subjects & Operators: What They Do and When to Use Them
RxJS Subjects & Operators: What They Do and When to Use Them

RxJS Subjects & Operators: What They Do and When to Use Them free download

Together, we build an Angular course application to enhance your knowledge of RxJS, Observables and Reactive Programming

Have you just been tasked with your first coding project that involves RxJS but have no knowledge of the technology?

Do you already have experience using the map and tap operators but want to learn more about some of the other operators in the RxJS library?

Are you interested in learning more about the Reactive Programming style?

You've come to the right course!

In this course, you'll start learning the basics of RxJS and work you way to the more advanced topics.

The course includes detailed discussions on each of the following RxJS features:


  • Subjects: Subject, BehaviorSubject, ReplaySubject, AsyncSubject

  • Creation Operators: interval, of, from, defer

  • Filtering Operators: take, filter, debounceTime, throttleTime, distinctUntilChanged

  • Creation Join Operators: forkJoin, combineLatest, merge, zip

  • Pipeable Join Operators: concatAll, mergeAll, withLatestFrom

  • Transformation Operators: map, groupBy, scan

  • Higher Order Mapping Operators: concatMap, mergeMap, switchMap, exhaustMap

  • Utility & Error Handling Operators: tap, delay, toArray, catchError, finalize

  • Multicasting Operators: shareReplay, share


We'll cover the following topics:


  • An Observables Primer

  • Imperative vs Reactive Programming

  • How to Create Custom Operators: including operators for logging, sorting and showing/hiding a loading indicator

  • Understanding the official RxJS documentation, especially marble diagrams

To help you learn how to code each RxJS feature, we'll use an Angular application that we'll build and extend throughout the entirety of the course.

And there are a few topics that employ charming little demos to help get the point across.

To be mindful of students with varying levels of programming expertise, the instructor maintains a slow to moderate speaking voice. Feel free to play the videos with an increased speed if that benefits you.

There's a lot to learn.

So, LET'S GET STARTED!