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Some the book Contents

• Introduction
• Abstracting over Execution
• Pure Functional Programming
• For Comprehensions
• Syntax Sugar
• Unhappy Path
• Gymnastics
• Incomprehensible
• Application Design
• Specification
• Interfaces / Algebras
• Business Logic
• Unit Tests
• Parallel
• Summary
• Data and Functionality
• Data
• Functionality
• Modelling OAuth2
• Summary
• Scalaz Typeclasses
• Agenda
• Appendable Things
• Objecty Things
• Mappable Things
• Variance
• Apply and Bind
• Applicative and Monad
• Divide and Conquer
• Plus
• Lone Wolves
• Co-things
• Bi-things
• Summary
• Scalaz Data Types
• Type Variance
• Evaluation
• Memoisation
• Tagging
• Natural Transformations
• Isomorphism
• Containers

Book Description

The author says, ‘his book is for the typical Scala developer, probably with a Java background, who is both sceptical and curious about the Functional Programming (FP) paradigm. This book justifies every concept with practical examples, including writing a web application. This book uses Scalaz 7.2, the most popular, stable, principled and comprehensive Functional Programming framework for Scala.

This book is designed to be read from cover to cover, in the order presented, with a rest between chapters. Earlier chapters encourage coding styles that we will later discredit: similar to how we learn Newton’s theory of gravity as children, and progress to Riemann / Einstein / Maxwell if we become students of physics. A computer is not necessary to follow along, but studying the Scalaz source code is encouraged’

Book Overview

This book is a breath of fresh air for anyone tired of dry programming manuals. Halliday starts with the basics and gradually builds up to more advanced functional concepts. The chapters flow logically, so you never feel lost or left behind. He even sprinkles in some humoryes, in a programming book! You’ll explore topics like immutability, higher-order functions, and pure functions, all explained in a way that actually makes sense. I found myself nodding along, thinking, “Finally, someone gets it!” For folks who’ve enjoyed foundational texts like Programming From the Ground Up, this book offers a fresh perspective on modern paradigms.

Why Read This Book

So why should you pick up Functional Programming for Mortals? First off, it’s practicalno fluff or endless theory. Halliday gives you tools you can use right away in your daily coding life. Plus, his examples are drawn from real projects, not just academic exercises. If you’ve ever struggled to see how functional programming applies outside the classroom, this book will make things click. And let’s be honest: who hasn’t spent hours debugging spaghetti code? This book shows how FP can help untangle that mess. If you’re curious about other programming styles and want a solid foundation before diving deeper (maybe even into classic resources like The Basics of C Programming), Halliday’s approach bridges that gap perfectly.

Who This Book Is For

This one’s for curious mindswhether you’re new to coding or have years of experience under your belt. If you’re a developer who wants to level up your code quality or simply understand what all the FP hype is about, this is your jam. Students will appreciate the clear explanations and step-by-step progression. Even seasoned programmers will find new ways to think about old problems. And hey, if you love those “aha!” moments when everything suddenly makes sense, this book delivers them by the handful.

What You Will Learn

• The core principles of functional programming (without the headache)
• How immutability leads to safer, more maintainable code
• Using higher-order functions effectively in everyday situations
• Strategies for refactoring imperative code into functional style
• Real-world examples that bridge theory and practice
• Troubleshooting tips for common FP pitfalls (we’ve all been there!)
• Why pure functions can change how you approach problem-solving
• A fresh mindset that makes coding feel fun again

This Book is a large book but only few pages are provided for download, to read full book online, consider clicking the external source at the top of this page

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