Kmetiuk - Mastering functional programming functional techniques for sequential and parallel programming with Scala

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First published: August 2018

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ISBN 978-1-78862-079-6

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Anatolii Kmetiuk is a Functional Programming and Data Science Freelance Developer. During his programming career, he has worked on Scala projects involving parallel computing, web APIs, SaaS, and data engineering. His areas of expertise include using applications of pure functional programming to build fault-tolerant, reactive systems, as well as parallel computing. Another area of his focus is machine learning and natural language processing.

Marco Borst is an independent programmer with more then 20 years of experience programming systems that yield useful applications. He teaches development teams alternative points of view regarding the applicability and limits of our functional abstractions. Stoked to be the most pragmatic person in the room, Marco shares his appreciation that, out of a multitude of daily choices to do either A or B, the least useless choice is often to do neither A nor B. It is a difficult choice to act upon. Being an engineer by education, a programmer by experience, and a communicator because nature forced him to be, Marco is inclined to share his craft with others and is positively thrilled when able to learn from others as well.

Andr van Delft is an independent computer science researcher in the Netherlands. Having studied mathematics and business administration, he has made a living as a consultant and scientist in various organizations. His main project is SubScript, which extends Scala with the so called Algebra of Communicating Processes, a concurrency theory from the 1980s, which he has presented at various conferences, such as Lambda Days, LambdaConf, and FLOPS. His product, SlideMight, may be the first off-the-shelf software that is partially powered with the Algebra of Communicating Processes.

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Functional programming languages, such as Java, Scala, and Clojure, are attracting attention as an efficient way to handle the new requirements for programming multi-processor and high-availability applications. This book will teach you functional programming with the help of Scala. The book takes a thought-leadership approach, gently introducing you to functional programming and taking you all the way to becoming a master at the paradigm. Beginning with an introduction to functional programming, the book gradually moves forward teaching you how to write declarative code, making use of functional types and values. After covering the basics, we will discuss the more advanced concepts in functional programming.

We will cover the concepts of pure functions and type classes, problems they aim to solve, and how to use them in practice. We will see how libraries can be used for purely functional programming. We will look at the broad family of libraries for functional programming. Finally, we will discuss some of the more advanced patterns in the functional programming world, such as Monad Transformers and Tagless Final. After covering the purely functional approach to programming, we will look into the subject of parallel programming. We will introduce the Actor model and how it is implemented in the modern functional languages. By the end of this book, you will have mastered the concepts entailing functional programming alongside OOP to build robust applications.