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Becoming Functional (Englisch) Taschenbuch – 11. Juli 2014

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Joshua F. Backfield is a Software Development Engineer at Dell SecureWorks, Inc., an industry leading MSSP. He is responsible for the design and development of many internal UI tools as well as multiple backend processes. He has over 5 years of development experience, 3 of which have been in production software. He holds a Bachelor of Science in Electronic Systems Technologies from Southern Illinois University at Carbondale and a Masters of Science in Computer Science from DePaul University. He has worked in a variety of languages such as C, C++, Perl, Java, Javascript, Scala and continues to learn and grow with more languages constantly. He has ported multiple native C applications to Scala, introduced many coworkers to Scala, and taught them the underlying functional programming concepts.


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Format: Kindle Edition Verifizierter Kauf
Full of spelling and grammatical mistakes. Also describes OOP as "the OOP is really used for encapsulation of variables into objects". This seems like a really useless way of characterising OOP. Also what's with "the OOP" anyway? O'Reilly should be ashamed of selling this book as they could have at least had a copy editor catch the spelling and grammar mistakes. Personally I can't read anything that is full of mistakes. It is just too distracting. Furthermore, after only the first three pages I felt that the author sounded like a non-native speaker who is using plenty of broken English.
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Die hilfreichsten Kundenrezensionen auf Amazon.com (beta)

Amazon.com: HASH(0x9849ab04) von 5 Sternen 9 Rezensionen
13 von 15 Kunden fanden die folgende Rezension hilfreich
HASH(0x9892248c) von 5 Sternen Java in a functional style is unpleasant 13. August 2014
Von Mike - Veröffentlicht auf Amazon.com
Format: Kindle Edition Verifizierter Kauf
I like functional development. Unfortunately, a large part of this book was spent on showing you how to convert a Java project to a functional development style. I found this to be torturous endeavor. The parts covering Groovy and Scala were fine. Because so much of the book was devoted to using Java in a functional style, there wasn't much depth to the rest of the book.
4 von 4 Kunden fanden die folgende Rezension hilfreich
HASH(0x981b387c) von 5 Sternen converting Java 7 samples to Groovy to Scala 17. September 2014
Von Cristi S. - Veröffentlicht auf Amazon.com
Format: Kindle Edition
Let's see, new JVM programming language like Groovy or Scala appeared because people were getting frustrated by the slow evolution of Java language, especially the lack of many FP aspects (like lambdas). Their creators loved Java and relied on JVM. While Scala adopted a new specific syntax, Groovy supported the full set of Java constructs. A program in Java is fully supported by Groovy (it IS also a Groovy program).

This books shows us multiple examples of taking "traditional" Java 7 code, compiling it into Groovy and slowly changing it, until it becomes a Scala program. The idea seems interesting (taking non-functional Java and gradually applying Groovy/Scala functional flavors). But it's actually confusing.

Could be just bad timing, but Java 8 is now already here and people may be more interested to convert old non-FP Java into the new Java 8, which contains plenty of functional programming features.
2 von 2 Kunden fanden die folgende Rezension hilfreich
HASH(0x985bf21c) von 5 Sternen Finally the Light Bulb turned on. 18. März 2015
Von Stephen L. Mcconnell - Veröffentlicht auf Amazon.com
Format: Kindle Edition Verifizierter Kauf
As an old Fortran and Cobol Programmer, I had a hard time wrapping my mind around Object Oriented Programming and it took a while an several good books to do it about 20 years ago. I had heard a Neil Ford lecture on Functional Programming a couple of years ago and have tried to wrap my mind around it for 2 years.

I got this book and the lightbulb came on. I don't know what it was about this book that did so, but I really enjoyed it. Joshua ALSO is not a Functional Programming purist. He realizes that Functional is a good solution to many problems, but not all problems and one has to have some Stateful portions of your program (such as I/O and some Data Structures) and explains this.

However, the book gives one a step by step idea of how to refactor and change some of your non-functional code into functional code using the concepts of Pure Functions, Functions as Objects, Recursion, Immutability and Pattern Matching....

The emphasis is "Becoming" Functional.... using the way he presents his concepts, you don't have to be ALL functional, one can "become" functional step by step.

Oh! BTW, as I was reading his book, I took some of his concepts and refactored some of our production code to incorporate the concepts as I read it. The code is so much cleaner, and easier to understand.

Yeah... this book helped the lightbulb finally switch on.
1 von 1 Kunden fanden die folgende Rezension hilfreich
HASH(0x984addf8) von 5 Sternen Really good introduction to functional programming from an imperative perspective 19. August 2014
Von J. Greenwood - Veröffentlicht auf Amazon.com
Format: Kindle Edition Verifizierter Kauf
I like how the author takes our current imperative way of thinking and implementing to a more functional approach introducing us to the benefits of using Groovy and Scala whilst highlighting the issues continuing to use java.

Really good read with some great examples to grasp the concepts. I recommend people read this first before even thinking about Scala or Groovy.
1 von 1 Kunden fanden die folgende Rezension hilfreich
HASH(0x981ef8f4) von 5 Sternen However it reads like more of a magazine than a book 1. Dezember 2014
Von I. East - Veröffentlicht auf Amazon.com
Format: Taschenbuch Verifizierter Kauf
I'll give this 4 stars because it does cover the material well. However it reads like more of a magazine than a book. And I dislike that the author said he's not including Java 8 lambdas and focused on Groovy instead.
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