Reactive JavaScript Programming
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Reactive JavaScript Programming

Optimize your coding skills with Reactive JavaScript Programming
0.0 (0 ratings)
Instead of using a simple lifetime average, Udemy calculates a course's star rating by considering a number of different factors such as the number of ratings, the age of ratings, and the likelihood of fraudulent ratings.
6 students enrolled
Created by Packt Publishing
Last updated 5/2017
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Current price: $10 Original price: $125 Discount: 92% off
30-Day Money-Back Guarantee
  • 2.5 hours on-demand video
  • 1 Supplemental Resource
  • Full lifetime access
  • Access on mobile and TV
  • Certificate of Completion
What Will I Learn?
  • The power and ease of using Reactive programming
  • Thinking and modeling apps in the Reactive way.
  • Fully understand Rx js including its operators, subjects, and schedulers.
View Curriculum
  • Some knowledge of ES6 is assumed as it is has been around for ~1.5 years now, but the course will initially guide through the ES6 syntax.

This video is a combination of the following three aspects:

  • Introduction to Reactive Programming + Rx in Depth.
  • Need for going Reactive, Understanding Event Streams, Getting familiar with APIs, and Building a BMI Calculator App.
  • Introduce Rx concepts and similar APIs across many languages, Covering the necessary operators, Examples of Operators and Streams.
  • Building a stopwatch app
  • Building an Autocomplete search box with Rx.
  • Creating operators and performing various operations such as transform, filter, combine, and error handling.

About the Author

I Shriyans Bhatnagar use Rx.js on a daily basis in work, mostly combining it with React and redux. Being a full stack developer, I often find myself using Rx on Node too. Playing around with a few Reactive libraries—RxJs, most.js, and, bacon.js—and Reactive frameworks such as cycle.js, I absolutely love writing functional Reactive code. I am an avid fan of pure functional programming. I have played around with Haskell, elm, and erlang quite a lot and have some experience writing clojureScript. These days I really dig ReasonML (a new interface to OCaml by Facebook).
I started out as a backend engineer writing Ruby applications using rails, but I quickly moved on to using JavaScript for both the backend and frontend. My hobby projects vary from making Node-powered bots using Johnny-Five with the Arduino to machine-learning projects using Python libraries such as Scikit and Tensorflow. But, ultimately, I truly love building user interfaces and providing a good user experience.

Who is the target audience?
  • This course assumes viewers are at least slightly familiar with JS in browsers and in Node.
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Curriculum For This Course
28 Lectures
Thinking Reactively
4 Lectures 26:31
This video provides an overview of the entire course.
Preview 02:19

Asynchronous programming is really useful, but it is tough to manage asynchronous code.

The Need for Going Reactive

Learn using a reactive programming library.

First Bite into bacon.js

Making viewers familiar with building reactive applications.

Building a Reactive Application
Up Your Game with Rx
3 Lectures 24:31

What Rx.js is and why to use another functional reactive programming library?

Preview 01:31

Learn to understand how to manipulate streams using operators.
Dealing with Operators

Understand the basics of streams in Rx.js.

Playing with Streams
Day-to-Day Rx
2 Lectures 21:11

Using Rx.js in day-to-day tasks.

Preview 16:34

Learn how to implement drag and drop using only Rx.js.

Implementing Drag and Drop
Know Your Operators
6 Lectures 20:43

How to create observables in Rx.js?

Preview 04:24

How to transform observables in Rx.js

Transform Operators

How to filter observables in Rx.js?
Filter Operators

How to use combine observables in Rx.js?

Combine Operators

How to use error handling operators in Rx.js?
Error Handling Operators

Count the number of multiple clicks the user performs.

Click Control App
Make Your Own Observables
4 Lectures 15:35
Understand that observables are just made up of generalized functions.
Preview 04:10

Understand how observables handle error and, also, how they complete.
Error Handling and Completion

Making a general abstraction for creating observables.
Adding the Creation Operator

Add different operators to our custom observable.
Adding Other Operators
Master the Subject
7 Lectures 25:19
How to share the execution of an observable across many observers?
Preview 04:28

How to get the last value from a shared observable.

Behavior Subject

How to get all the values from a shared observable.

Replay Subject

How to get the last value from a shared observable after its completion.

Async Subject

Better APIs to use subjects.


If a shared execution doesn’t compete, then it would leave to memory leaks.
Stopping a Shared Execution

How to automatically subscribe and unsubscribe from shared observable.
Automate Subjects
Understanding Schedulers
2 Lectures 06:23
Manage concurrency with schedulers.
Preview 02:01

Understand the different types of schedulers.
Types of Schedulers
About the Instructor
Packt Publishing
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