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Scala Functional Programming Patterns

You're reading from   Scala Functional Programming Patterns Grok and perform effective functional programming in Scala

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Product type Paperback
Published in Dec 2015
Publisher
ISBN-13 9781783985845
Length 298 pages
Edition 1st Edition
Languages
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Author (1):
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Atul S. Khot Atul S. Khot
Author Profile Icon Atul S. Khot
Atul S. Khot
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Table of Contents (13) Chapters Close

Preface 1. Grokking the Functional Way FREE CHAPTER 2. Singletons, Factories, and Builders 3. Recursion and Chasing your Own Tail 4. Lazy Sequences – Being Lazy, Being Good 5. Taming Multiple Inheritance with Traits 6. Currying Favors with Your Code 7. Of Visitors and Chains of Responsibilities 8. Traversals – Mapping/Filtering/Folding/Reducing 9. Higher Order Functions 10. Actors and Message Passing 11. It's a Paradigm Shift Index

Chapter 5. Taming Multiple Inheritance with Traits

When it is summer time in India and the heat is just unbearable, our hands instinctively reach out for either the AC remote or the regulator knob. And in a matter of minutes, we get bliss! An AC remote is pretty simple to operate and so is a ceiling fan regulator. A handful of push buttons that are easily understood by anyone. However, a remote is an interface. It is the system's way of allowing the external world to interact with it. A regulator knob is another, and so is a TV remote and the numeric keypad on your phone. As the air conditioner is a complex system, it needs to expose a simple way in which the consumer can use it. A motorbike too is a complex machine. You just need to know how to kick start it into life, change gears, and off you go. The bike also comes equipped with useful stuff, such as a fuel gauge and a speedometer. An AC remote, a bike fuel gauge, and a fan regulator are all interfaces. Think of a system...

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