Stylish F# 6

1. Front Matter

   Pages i-xxii

   PDF

2. The Sense of Style

   • Kit Eason

   Pages 1-9

3. Designing Functions Using Types

   • Kit Eason

   Pages 11-27

4. Missing Data

   • Kit Eason

   Pages 29-60

5. Working Effectively with Collection Functions

   • Kit Eason

   Pages 61-98

6. Immutability and Mutation

   • Kit Eason

   Pages 99-122

7. Pattern Matching

   • Kit Eason

   Pages 123-163

8. Record Types

   • Kit Eason

   Pages 165-203

9. Classes

   • Kit Eason

   Pages 205-252

10. Programming with Functions

    • Kit Eason

    Pages 253-274

11. Asynchronous and Parallel Programming

    • Kit Eason

    Pages 275-309

12. Railway Oriented Programming

    • Kit Eason

    Pages 311-336

13. Performance

    • Kit Eason

    Pages 337-381

14. Layout and Naming

    • Kit Eason

    Pages 383-407

15. Summary

    • Kit Eason

    Pages 409-416

16. Back Matter

    Pages 417-422

    PDF

Why just get by in F# when you can program in style. This book goes beyond syntax and into design. It provides F# developers with best practices, guidance, and advice to write beautiful, maintainable, and correct code. This second edition, fully updated for .NET 6 and F# 6, includes all new coverage of anonymous records, the task {} computation expression, and the relationship between types and modules.

Stylish F# 6 covers every design decision that a developer makes in constructing F# programs, helping you make the most educated and valuable design choices at every stage of code development. You will learn about the design of types and function signatures, the benefits of immutability, and the uses of partial function application. You will understand best practices for writing APIs to be used by F#, C#, and other languages. Each carefully vetted design choice is supported with compelling examples, illustrations, and rationales.

What You Will Learn

• Know why, when, and how to code in immutable style
• Use collection functions, piping, and function composition to build working software quickly
• Be aware of the techniques available to bring error handling into the mainstream of program logic
  
• Optimize F# code for maximum performance
  
• Identify and implement opportunities to use function injection to improve program design
  
• Appreciate the methods available to handle unknown data values
  
• Understand asynchronous and parallel programming in F#, and how it differs from C# asynchronous programming
• Exploit records and anonymous records as low-overhead, easily comparable containers for structured data

Who This Book Is For

Any developer who writes F# code and wants to write it better

• F#
• C#
• .NET
• Don Syme
• Functional Programming
• monads
• F# programming style
• F# coding style
• F# Visual Studio
• F# development style
• clean code

• Farnham, Surrey, UK

  Kit Eason

Kit Eason is a software developer and educator with more than 20 years of experience. He has been programming in F# since 2011 and is employed at Perpetuum Ltd., working on an extensive network of energy-harvesting vibration sensors fitted to railway rolling stock and infrastructure. Kit is an avid F# user who is passionate about teaching others. He has contributed to several publications, including Apress books Beginning F# and F# Deep Dives. He often teaches on the topic of F# and his popular videos appear on Udemy and Pluralsight.