Book Image

F# 4.0 Design Patterns

By : Gene Belitski
Book Image

F# 4.0 Design Patterns

By: Gene Belitski

Overview of this book

Following design patterns is a well-known approach to writing better programs that captures and reuses high-level abstractions that are common in many applications. This book will encourage you to develop an idiomatic F# coding skillset by fully embracing the functional-first F# paradigm. It will also help you harness this powerful instrument to write succinct, bug-free, and cross-platform code. F# 4.0 Design Patterns will start off by helping you develop a functional way of thinking. We will show you how beneficial the functional-first paradigm is and how to use it to get the optimum results. The book will help you acquire the practical knowledge of the main functional design patterns, the relationship of which with the traditional Gang of Four set is not straightforward. We will take you through pattern matching, immutable data types, and sequences in F#. We will also uncover advanced functional patterns, look at polymorphic functions, typical data crunching techniques, adjusting code through augmentation, and generalization. Lastly, we will take a look at the advanced techniques to equip you with everything you need to write flawless code.
Table of Contents (20 chapters)
F# 4.0 Design Patterns
Credits
About the Author
Acknowledgements
About the Reviewer
www.PacktPub.com
Preface

Using REPL and the explorative programming style


REPL stands for Read-Evaluate-Print Loop (https://en.wikipedia.org/wiki/Read%E2%80%93eval%E2%80%93print_loop) and represents a manner of program development that quite deviates from what old-style C# programmers were used to, namely edit source code - build the compiled program version - run and debug loop. From its very early days, F# has introduced interactive development manner (https://docs.microsoft.com/en-us/dotnet/articles/fsharp/tutorials/fsharp-interactive/index). However, more broadly, it equips the F# developer with just another programming style collectively referred to as exploratory programming (https://en.wikipedia.org/wiki/Exploratory_programming). F# offers a tool known as F# Interactive (32-bit fsi.exe or 64-bit-capable fsiAnyCPU.exe) both as a standalone, or as a part of Visual Studio reachable from any F# Project. It allows you to evaluate any F# expression presented in the form of a standalone F# script or just a selected...