Book Image

Mastering Reactive JavaScript

By : Erich de Souza Oliveira
Book Image

Mastering Reactive JavaScript

By: Erich de Souza Oliveira

Overview of this book

If you’re struggling to handle a large amount of data and don’t know how to improve your code readability, then reactive programming is the right solution for you. It lets you describe how your code behaves when changes happen and makes it easier to deal with real-time data. This book will teach you what reactive programming is, and how you can use it to write better applications. The book starts with the basics of reactive programming, what Reactive Extensions is, and how can you use it in JavaScript along with some reactive code using Bacon. Next, you’ll discover what an Observable and an Observer are and when to use them.You'll also find out how you can query data through operators, and how to use schedulers to react to changes. Moving on, you’ll explore the RxJs API, be introduced to the problem of data traffic (backpressure), and see how you can mitigate it. You’ll also learn about other important operators that can help improve your code readability, and you’ll see how to use transducers to compose operators. At the end of the book, you’ll get hands-on experience of using RxJs, and will create a real-time web chat using RxJs on the client and server, providing you with the complete package to master RxJs.
Table of Contents (11 chapters)

Available transducer implementations for JavaScript

As we seen in the last section, there are two important implementations available, and as transducers libraries implement a protocol, it should be easy to switch implementations. To show example usages of transducers we need to choose one of them, and I will choose to use transducers-js; as both are more or less equally popular, but transducers-js has more transformations available, so it should be more easy for you to try, test, and play with a little bit.

Both implementations can be used in both node and browser. In this chapter, we will use it only in node, and to use it all we have to do is to install it using npm:

    npm install transducers-js


In this book, we will be using version 0.4.174 of the transducers-js library; to install this specific version run the following command instead:

    npm install [email protected]