Table of Contents

• Preface
  • Who should read this book
  • Thanks
  • About the author
• Introduction
  • Why Choose F#?
  • What does this book cover
  • Setting up your environment
  • Getting to know VS Code and Ionide
  • One Last Thing
• 1 - A simple domain modelling exercise
  • The Problem
  • Initial Version
  • Making the Implicit Explicit (1 of 2)
  • Making the Implicit Explicit (2 of 2)
  • Type Composition
  • Summary
  • Postscript
• 2 - Function Composition
  • Theory
  • In Practice
  • Multiple Parameters
  • Partial Application
  • Summary
• 3 - Null and Exception Handling
  • Null Handling
  • Interop With .NET
  • Handling Exceptions
  • Function Composition With Result
  • Summary
• 4 - Organising Code
  • Getting Started
  • Solutions and Projects
  • Adding a Source File
  • Namespaces and Modules
  • Problem
  • Creating Unit Tests
  • Simplifying Our Code
  • Extending the Functionality
  • Adding Unit Tests for Register Customer
  • The Completed Codebase
  • Summary
• 5 - Introduction to Collections
  • Before We Start
  • The Basics
  • Core Functionality
  • Folding
  • Grouping Data and Uniqueness
  • Practical Example
  • Summary
• 6 - Reading Data From a File
  • Setting Up
  • Loading Data
  • Parsing Data
  • Testing the Code
  • Final Code
  • Summary
• 7 - Active Patterns
  • Setting Up
  • Partial Active Patterns
  • Parameterized Partial Active Patterns
  • Multi-Case Active Patterns
  • Summary
• 8 - Functional Validation
  • Setting Up
  • Solving the Problem
  • Final Code
  • Applicatives
  • Summary
• 9 - Single Case Discriminated Union
  • Setting Up
  • Solving the Problem
  • Final Code
  • Record Type
  • Summary
• 10 - Object Programming
  • Setting Up
  • Class Types
  • Interfaces
  • Object Expressions
  • Encapsulation
  • Equality
  • Summary
• 11 - Recursion
  • Setting Up
  • Solving The Problem
  • Tail Call Optimisation
  • Expanding the Accumulator
  • FizzBuzz Using Recursion
  • Quicksort using recursion
  • Other Uses Of Recursion
  • Further Reading
  • Summary
• 12 - Computation Expressions
  • Setting Up
  • Introducing the Problem
  • The Result Computation Expression
  • Introduction to Async
  • Computation Expressions in Action
  • Debugging Code
  • Further Reading
  • Summary
• 13 - Introduction to Giraffe
  • Getting Started
  • Running the Sample Code
  • HttpHandlers and Combinators
  • Next Steps
  • Giraffe as an API
  • Creating a Custom HttpHandler
  • Creating a View
  • Tidying up Routing
  • Reviewing the Code
  • Summary
• 14 - Creating an API with Giraffe
  • Getting Started
  • Our Task
  • Sample Data
  • Routes
  • Handlers
  • Using the API
  • Summary
• 15 - Creating Web Pages with Giraffe
  • Getting Started
  • Our Task
  • Configuration
  • Converting HTML To Giraffe View Engine
  • Next Stage
  • Tidying Up
  • Summary
• Summary
  • F# Software Foundation
  • Resources
  • And Finally