Book Image

Reactive Programming for .NET Developers

Book Image

Reactive Programming for .NET Developers

Overview of this book

Reactive programming is an innovative programming paradigm focused on time-based problem solving. It makes your programs better-performing, easier to scale, and more reliable. Want to create fast-running applications to handle complex logics and huge datasets for financial and big-data challenges? Then you have picked up the right book! Starting with the principles of reactive programming and unveiling the power of the pull-programming world, this book is your one-stop solution to get a deep practical understanding of reactive programming techniques. You will gradually learn all about reactive extensions, programming, testing, and debugging observable sequence, and integrating events from CLR data-at-rest or events. Finally, you will dive into advanced techniques such as manipulating time in data-flow, customizing operators and providers, and exploring functional reactive programming. By the end of the book, you'll know how to apply reactive programming to solve complex problems and build efficient programs with reactive user interfaces.
Table of Contents (15 chapters)
Reactive Programming for .NET Developers
About the Authors
About the Reviewer

Combining operators

Combining operators combine multiple sequences into a new sequence, eventually with a specific design to reduce message flow.

Combine latest

The CombineLatest operator produces a new sequence that combines multiple sourcing sequences by joining such messages to produce a new composite message. Kindly consider that anytime each of the source enumerable flows a new message, regardless of being the first or the second sequence, a new composite message will flow throughout the combined latest sequence.

The new sequence will start flowing messages when all the sourcing sequences produce their first message.

A marble diagram showing a combine latest operation

Here's an example:

var s6 = new Subject<string>(); 
var s7 = new Subject<int>(); 
var clatest = s6.CombineLatest(s7, (x, y) => new { text = x, value = y, }); 
clatest.Subscribe(x => Console.WriteLine("{0}: {1}", x.text, x.value)); 
//some message 
s6.OnNext("Mr. Brown"); &...