Functional Programming, Simplified: (Scala Edition), by Alvin Alexander

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Functional Programming, Simplified: (Scala Edition), by Alvin Alexander

Functional Programming, Simplified: (Scala Edition), by Alvin Alexander


Functional Programming, Simplified: (Scala Edition), by Alvin Alexander


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Functional Programming, Simplified: (Scala Edition), by Alvin Alexander

If you’ve had trouble trying to learn Functional Programming (FP), you’re not alone. In this book, Alvin Alexander — author of the Scala Cookbook and former teacher of Java and Object-Oriented Programming (OOP) classes — writes about his own problems in trying to understand FP, and how he finally conquered it.

What he originally learned is that experienced FP developers are driven by two goals: to use only immutable values, and write only pure functions. What he later learned is that they have these goals as the result of another larger goal: they want all of their code to look and work just like algebra.

While that sounds simple, it turns out that these goals require them to use many advanced Scala features — which they often use all at the same time. As a result, their code can look completely foreign to novice FP developers. As Mr. Alexander writes, “When you first see their code it’s easy to ask, ‘Why would anyone write code like this?’”

Mr. Alexander answers that “Why?” question by explaining the benefits of writing pure functional code. Once you understand those benefits — your motivation for learning FP — he shares five rules for programming in the book:

In the book you’ll see how those five, simple rules naturally lead you to write pure, functional code that reads like algebra. He also shares one more Golden Rule for learning:

Lessons in the book include:

As Mr. Alexander writes, “In this book I take the time to explain all of the concepts that are used to write FP code in Scala. As I learned from my own experience, once you understand the Five Rules and the small concepts, you can understand Scala/FP.”

Please note that because of the limits on how large a printed book can be, the paperback version does not include all of the chapters that are in the Kindle eBook. The following lessons are not in the paperback version:

Because those lessons didn’ fit in the print version, they have been made freely available online.

(Alvin Alexander (alvinalexander.com) wrote the popular Scala Cookbook for O’Reilly, and also self-published two other books, How I Sold My Business: A Personal Diary, and A Survival Guide for New Consultants.)

Product details

Paperback: 780 pages

Publisher: CreateSpace Independent Publishing Platform (December 7, 2017)

Language: English

ISBN-10: 1979788782

ISBN-13: 978-1979788786

Product Dimensions:

7 x 1.8 x 10 inches

Shipping Weight: 3.6 pounds (View shipping rates and policies)

Average Customer Review:

4.4 out of 5 stars

17 customer reviews

Amazon Best Sellers Rank:

#409,914 in Books (See Top 100 in Books)

Update: I'm doing my second readthrough and I'm really appreciating this time. Will give a full reviews when I actually fully read it now that he's released 1.0It's not bad, but it's still over my head. It's possible functional programming is just a bit much for me at this point, but it would be nice for someone to really try and dumb it down. It would be nice if Alvin can start it off making it stupid simple scale it more nicely. Though truthfully, it is easier to understand than other books/reading material I have come across.

The author has done a great job in putting together a book which explains in a very approachable fashion the difficult concepts which exist in functional programming and how Scala relates to it. The author does not weigh you down with difficult examples, but has chosen to explain functional programming primarily, providing examples on Scala as a means of explaining those concepts. This was very unusual and very welcome. My only issue with the book is the size, as it is a very large, thick book and takes up a lot of space on my bookshelf!

Alvin Alexander writes in a very concise style that is easy to comprehend. He does exceptional job of translating the jargon associated with functional programming. This is a good place to start if you are new to both Scala and functional programming or just needing a refresher. Most FP books tend to start at too high of a level or already you have learned Haskell. This book will save you a lot of time by skipping both of those prerequisites even though you may want learn Haskell later to round out your FP knowledge.

I teach university-level big data classes and have found this text very helpful in grounding myself in functional principles and practices that I want to convey to my students. Mr. Alexander does a thorough job of describing how immutability and pure functions combine to produce bullet-proof ( or at least bullet resistant ) code. His emphasis on strong type-aware coding is sorely needed as multi-core concurrent/distributed programming become the norm. The book is long, but is worth following the careful description of the basic ideas underlying important concepts such as impure functions within a compositional framework. I think this would be a suitable book following an initial language such as Python.

I thought this book was amazing.While there a more technical introductions to FP such as Functional Programming in Scala, I had tried it and found it hard going. The exercises in particular went a bit beyond simply illustrating the concepts, and were just plain hard.This book on the other hand has a lot more conversational approach to FP. The author explain the concepts one by one, building on top of precedent lessons. He also talks about how he feels about each concept, what new ability it gives us, when it is good to use, etc.I often see Functional Programming in Scala as a book that gets recommended to aspiring functional programmers and that suggestion is very misguided. Functional Programming in Scala is terrific once you've been doing FP for a few months to a year.Functional Programming is daunting and hard to learn: Functional Programming Simplified makes that easier. It is the book to get you started on FP.Wish I could rate it more highly.

Most enjoyable book I’ve read by far. Simple, intuitive and very detailed, FP Simplified (Scala ed) covers everything you’d ever ask about Functional Programming paradigm. The author guides the reader through concepts in a way the reader will get the point. Then, he names the concept explained how it’s known as.I don’t recommend this book for people who don’t know Scala, though. I’d suggest to read some of Scala lang before read this one.

I'm learning Ocaml and have no interest in Scala, but since there are so few Ocaml books available, I was trying to find something that would give me a good overview of Functional Programming in general. This book promised to be that, and it delivered. I'd say 50% of the content (why functional programming, defining a bunch of terms, how to structure your applications) is not specific to Scala, and the parts that do talk specifically about Scala are directly applicable to other languages as well. Seeing examples of FP written in Scala has also helped me understand some of Ocaml's design decisions better.Overall the book is well-written and approachable. It covers everything you could want to know about functional programming, and every chapter has several links to more books and sources in case you want to dig even deeper.

The best book about functional programming i've read so far. It's like Alvin is beside me and do the pair programming together. So many "aha!" moments when reading this book, especially when he explains the concepts using clear and concise code + the quotes of computer scientists and references that make you learn even more than "just" functional programming and Scala.I am a reader since the version 0.1.2 (ebook).PS: This is my first book review on Amazon.

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