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)


In this chapter, we learned what transducers are. They are a way to compose transformations to be applied to iterable sources, and they are independent of the data source.

We learned the advantages of using transducers–algorithmic transformation composition, performance improvement, better testability, better readability, and independency from the data source

In the advantages we learned how we can compose multiple transformations to create a transformation decoupled from the data source, and how we can reuse the same transducer in completely different data sources.

One section showed the advantage of testing a transducer, as it lets us use synchronous code to test, and how we can have a big performance improvement using this tool.

Now you are ready to create and implement your own applications using functional reactive programming; remember you had the advantage of using Reactive Extensions throughout this book, so most of the knowledge you learned here can be used in other platforms...