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RxJS icon RxJS Basics

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4.8/5 (251 ratings)

Supercharge your development with Reactive Extensions for JavaScript. Tame the Observable.

RxJS

RxJS

Compatible with v6.x

Course duration icon

Duration

47 lessons 4 hours

What you'll learn

This comprehensive course takes you on a journey through the RxJS library, unveiling the many benefits of reactive programming. Explore common practices, learn Observables, Observers, Subjects, Subscriptions, Operators and much more.

The Missing Introduction to RxJS 06:39

Brian Troncone

Brian Troncone

Course Author

Requirements

  • JavaScript experience
  • DOM experience

If you're looking for a step-by-step guide for learning Angular and TypeScript, you'll find no better resource than Ultimate Courses.

David East

David East

Developer Advocate

After the RxJS Basics course I know much more than before about RxJS. I've learnt in a practical way how and when to use the powerful operators the library provides taking advantage from them in the daily work. Amazing!

Attilio Urbani

Attilio Urbani

Software Engineer

Todd's courses lead the way in the Angular world. We also worked together on a very successful live Angular performance training session to hundreds of developers.

Peter Cooper

Peter Cooper

CooperPress, JavaScript Weekly

A must have for anyone wanting to become an Angular developer. Lots of best practices to help you architect big apps. I learned incredible amounts from this course!

Mohammad Aljaber

Mohammad Aljaber

Solutions Architect

Todd's materials are always fantastic! The courses have helped me far better grasp real architecture of Angular apps - and the way it should really be done. A+.

Ritik Rishu

Ritik Rishu

Senior Engineer

Wow! I've achieved a great level of understanding on how to build real applications with Angular. Todd's indepth knowledge of Angular was fantastic, and the explanations on Typescript are superb.

Hung Bui

Hung Bui

Senior Front-End Developer

Angular Fundamentals is the clearest, and best produced Angular course on the market! Clear, concise, packed with best practices and skilled me up very quickly!

Kyle Hebert

Kyle Hebert

JavaScript Developer

Hands down the best courses available for Angular! Just follow along, you'll fall in love with Angular. Daunting concepts aren't scary anymore, they're a breeze.

Vatsal Pande

Vatsal Pande

Full-Stack Engineer, eBay

Here’s what’s covered...

Everything you need, structured and ready to go

Getting Started with RxJS

7 lessons

  • The Missing Introduction to RxJS

    08:04

  • Configuring your project to use RxJS

    00:52

  • Create your first observable

    06:06

  • Understanding observers, partial observers, and subscribers

    03:04

  • Deliver values asynchronously with observables

    03:37

  • Manage observable subscriptions with unsubscribe

    03:45

  • Introduction recap and what’s next

    01:34

Creation Operators

6 lessons

  • Introduction to creation operators

    02:09

  • Create observables from DOM events using fromEvent

    04:09

  • Create observables from static values using of

    02:45

  • Turn arrays, iterators, and promises into observables using from

    03:55

  • Emit items based on a duration with interval and timer

    02:43

  • Creation operators recap and what’s next

    00:48

Getting Started with Operators

9 lessons

  • Introduction to operators

    05:08

  • Introduction to marble diagrams

    03:21

  • Transform streams using map, pluck, and mapTo

    05:55

  • Ignore unneeded values with filter

    04:03

  • Lab 1. Create a scroll progress bar with fromEvent and map

    04:53

  • Accumulate data over time using reduce

    05:45

  • Manage state changes incrementally with scan

    04:41

  • Lab 2. Create a countdown timer using fromEvent, map, and scan

    05:44

  • Debug your observable streams with tap

    05:36

Filtering Operators

5 lessons

  • Introduction to filtering operators

    00:33

  • Emit a set number of values from a stream with take

    03:57

  • Complete a stream when a condition is met with takeWhile

    03:17

  • Complete a stream based on another stream using takeUntil

    03:59

  • Ignore non unique values using distinctUntilChanged

    05:21

Rate Limiting Operators

5 lessons

  • Introduction to rate limiting operators

    00:27

  • Take the latest value after a pause debounceTime

    06:02

  • Ignore values during windows using throttleTime

    05:28

  • Sample a stream on a uniform duration using sampleTime

    04:22

  • Audit a stream for a duration after an event occurs using auditTime

    02:46

Transformation Operators

8 lessons

  • Introduction to transformation operators

    00:42

  • What’s a flattening operator?

    06:52

  • Flatten inner observables as they occur with mergeMap

    06:39

  • Switch to a new observable on emissions using switchMap

    06:58

  • Subscribe to observables in order with concatMap

    07:05

  • Ignore emissions when an inner observable is active with exhaustMap

    06:02

  • Catch errors on observables with catchError

    05:27

  • Lab 3. Create an HTTP polling solution

    11:14

Combination Operators

7 lessons

  • Introduction to combination operators

    00:32

  • Append values to a stream using startWith and endWith

    04:00

  • Queue observable execution using concat

    05:15

  • Combine multiple active observables using merge

    09:32

  • Receive the latest values from multiple observables on emissions using combineLatest

    08:05

  • Receive the latest value from multiple observable on completion with forkJoin

    04:19

  • Lab 4. Create a Mortgage Calculator

    12:42

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