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Functional Programming Patterns in Scala and Clojure

Functional languages have their own patterns that enable you to solve problems with less code than object-oriented programming alone. This book introduces you, the experienced Java programmer, to Scala and Clojure: practical, production-quality languages that run on the JVM and interoperate with existing Java. By using both the statically typed, type-inferred Scala and the dynamically typed, modern Lisp Clojure, you’ll gain a broad understanding of functional programming.

For each pattern, you’ll first see the traditional object-oriented solution, and then dig into the functional replacements in both Scala and Clojure. These patterns are common in the functional world and deserve to become part of your problem-solving toolkit. On the object-oriented side, you’ll see many common patterns, such as Command, Strategy, and Null Object. On the functional side, you’ll learn core functional patterns such as Memoization, Lazy Sequence, and Tail Recursion.

Each pattern helps you solve a common programming problem. Working through them gives you a set of patterns you can use to solve problems you come across while writing programs. Finally, you’ll learn how to work your existing Java code into new Scala or Clojure projects. You can start off small, adding functional code little by little, so you can complement your existing knowledge with Scala and Clojure as these languages gain popularity on the JVM.

What you need
Clojure 1.5 and Scala 2.10. Optionally, Eclipse with plugins.

Table of Contents
Chapter 1. Patterns and Functional Programming
Chapter 2. TinyWeb: Patterns Working Together
Chapter 3. Replacing Object-Oriented Patterns
Chapter 4. Functional Patterns
Chapter 5. The End

Book Details

  • Paperback: 250 pages
  • Publisher: Pragmatic Bookshelf (November 2013)
  • Language: English
  • ISBN-10: 1937785475
  • ISBN-13: 978-1937785475
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