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Functional Programming with C#

You're reading from   Functional Programming with C# Unlock coding brilliance with the power of functional magic

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Product type Paperback
Published in Jul 2024
Publisher Packt
ISBN-13 9781805122685
Length 258 pages
Edition 1st Edition
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Author (1):
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Alex Yagur Alex Yagur
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Alex Yagur
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Table of Contents (18) Chapters Close

Preface 1. Part 1:Foundations of Functional Programming in C# FREE CHAPTER
2. Chapter 1: Getting Started with Functional Programming 3. Chapter 2: Expressions and Statements 4. Chapter 3: Pure Functions and Side Effects 5. Chapter 4: Honest Functions, Null, and Option 6. Part 2:Advanced Functional Techniques
7. Chapter 5: Error Handling 8. Chapter 6: Higher-Order Functions and Delegates 9. Chapter 7: Functors and Monads 10. Part 3:Practical Functional Programming
11. Chapter 8: Recursion and Tail Calls 12. Chapter 9: Currying and Partial Application 13. Chapter 10: Pipelines and Composition 14. Part 4:Conclusion and Future Directions
15. Chapter 11: Reflecting and Looking Ahead 16. Index 17. Other Books You May Enjoy

Task 2 – Applicative functor

Imagine you have two functions wrapped in the Result type: Result<Func<Tower, bool>, string> ValidateDamage checks whether a tower’s damage is within acceptable limits, and Result<Func<Tower, bool>, string> ValidateName checks whether the tower’s name meets certain criteria. Given a Result<Tower, string> representing a single tower, use applicative functors to apply both validation functions to the tower, ensuring both validations pass:

public Result<Func<Tower, bool>, string> ValidateDamage = new Result<Func<Tower, bool>, string>(tower => tower.Damage < 100);
public Result<Func<Tower, bool>, string> ValidateName = new Result<Func<Tower, bool>, string>(tower => tower.Name.Length > 5 && !tower.Name.Contains("BannedWord"));
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