دانلود کتاب Functional Programming with C#

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Preface Who Should Read This Book? Why I wrote this book Navigating This Book Acknowledgments Conventions Used in This Book Using Code Examples O’Reilly Online Learning How to Contact Us Dedication 1. Introduction What is Functional Programming? Is it a Language, an API, or what? The Properties of Functional Programming Baking Cakes An Imperative Cake A Declarative Cake Where does Functional Programming Come From? Who Else Does Functional Programming? Pure Functional Languages Is It Worth Learning a Pure Functional Language First? What about F#? Should I be learning F#? Multi-Paradigm Languages The Benefits of Functional Programming Concise Testable Robust Predictable Better Support for Concurrency Reduce Code Noise The Best Places to Use Functional Programming Where You Should Consider Using Other Paradigms? How Far Can We Take This? Monads – Actually don’t worry about this yet Summary I. What Are We Already Doing? 2. What can we do already? Getting Started Your First Functional Code A Non-Functional Film Query A Functional Film Query Results-Orientated Programming A few words about Enumerables Prefer Expressions to Statements The Humble Select Many to One - The subtle art of Aggregation Customised Iteration Behavior Immutability Putting it all Together - a Complete Functional Flow Taking it Further - Develop Your Functional Skills Summary 3. Functional Coding in C# 7 and Beyond Tuples Pattern Matching Procedural Bank Accounts Pattern Matching in C# 7 Pattern Matching in C# 8 Pattern Matching in C# 9 Pattern Matching in C# 10 C# 11 Discriminated Unions Active Patterns Immutability Read-only Structs Init only setters Record types Nullable Reference Types The Future Summary 4. Work Smart, Not Hard with Functional Code Let’s get Func-y Funcs in Enumerables A Super-Simple Validator Pattern Matching for Old Versions of C# Functional Filtering Make Dictionaries More Useful Parsing Values Custom Enumerations Query Adjacent Elements Iterate Until a Condition is Met Conclusion II. Into the Belly of the Functional 5. Higher-Order Functions A Problem Report Thunks Map Combinator Fork Combinator Compose Transduce Tap Try/Catch Unless Update an Enumerable Conclusion 6. Discriminated Unions Holiday Time Holidays with Discriminated Unions Schrödinger’s Union Naming Conventions Database Lookup Sending Email Console Input Generic Unions Maybe Result Maybe vs Result Either Conclusion 7. Functional Flow Maybe, Revisited Maybe and Debugging Maybe and Logging Maybe and Async Nested Maybes The Laws Left Identity Law Right Identity Law Associativity law Reader State Maybe a State? Examples You’re already using Enumerable Task Other Structures A Worked Example Conclusion 8. Currying and Partial Application Currying and large functions Currying and Higher-Order functions Currying in .NET Partial Application Partial Application in .NET Conclusion 9. Indefinite Loops Tail Recursion Trampolining Custom Iterator Anatomy of an Enumerator Implementing Custom Enumerators Indefinitely Looping Enumerables Using Indefinite Iterators Conclusion About the Author