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Více informací o knize Functional Programming with Haskell

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• Anotace
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Anotace knihy

Have you ever fixed a bug in one part of your program, only to have two new, unrelated bugs appear? Or have you tried to debug a large application where data seems to change magically, and you can't figure out where or why?

This is a common frustration, and it's often a side effect of traditional (imperative) programming, where we manage a complex, shared "state" that any part of the program can change at any time.

Functional programming offers a solution. It's a way to build programs from small, isolated, and predictable pieces. When a function can only create a new value and can't secretly change data elsewhere, your code becomes transparent. It becomes easy to test, simple to reason about, and a whole lot less stressful to maintain. This book is the story of how you can leave the chaos behind and start building with confidence.

What's inside

I've structured this book to be a practical journey, with each chapter building on the last and ending with a small project to solidify your skills.

• Part 1: The Foundation. We'll start by shifting your mindset to "think functionally." You'll master the core ideas of purity, immutability, and first-class functions. You'll also learn Haskell's fundamentals: its type system, how to write functions, and how to use conditional logic with guards.
• Part 2: The Toolkit. You'll learn to work with Haskell's most common data structures like lists and tuples. We'll cover powerful features like pattern matching (a safer, cleaner alternative to if or switch) and the "big three" higher-order functions: map, filter, and fold.
• Part 3: Building Real Applications. This is where we bring it all together. You'll learn to create your own custom data types to model problems safely (including the invaluable Maybe type). We'll tackle the most important concept: how Haskell safely handles "side effects" like user input, file reading, and random numbers using the IO type.
• Hands-On Projects: You won't just read-you'll build. We'll create a simple calculator, a recursive list sorter, a command-line to-do list manager, and a complete number-guessing game from scratch.

Who it's meant for

This book is for you if:

• You're a programmer coming from a language like Python, Java, JavaScript, or C# and you're tired of mysterious bugs and complex state management.
• You've heard about functional programming but want a practical, project-based guide that doesn't get lost in academic theory.
• You are a student or self-learner who wants to write code that is easier to test, maintain, and reason about.

You don't need any prior functional programming experience. All you need is a curious mind and a desire to build better software. I'll walk you through everything else.

Don't just learn another language. Learn a new way to think.

If you're ready to stop chasing bugs and start writing code that is predictable, safe, and clean from the ground up, this book is your guide. The journey to becoming a better, more effective programmer starts here.

Turn the page, and let's start building better software together.

Parametry knihy

• Plný název: Functional Programming with Haskell
• Podnázev: A Practical Guide to Writing Type-Safe, Modular, and Maintainable Code
• Autor: Richard D. Forrest
• Jazyk: Angličtina
• Vazba: Brožovaná
• Počet stran: 238
• EAN: 9798271282065
• ID: 50578877
• Nakladatelství: Independently published
• Hmotnost: 387 g
• Rozměry: 244 × 170 × 13 mm
• Datum vydání: 23. October 2025

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