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Functional C#

You're reading from   Functional C# Uncover the secrets of functional programming using C# and change the way you approach your applications

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Product type Paperback
Published in Dec 2016
Publisher Packt
ISBN-13 9781785282225
Length 370 pages
Edition 1st Edition
Languages
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Author (1):
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Wisnu Anggoro Wisnu Anggoro
Author Profile Icon Wisnu Anggoro
Wisnu Anggoro
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Table of Contents (12) Chapters Close

Preface 1. Tasting Functional Style in C# 2. Walkthrough Delegates FREE CHAPTER 3. Expressing Anonymous Methods with Lambda Expressions 4. Extending Object Functionality with Extension Methods 5. Querying Any Collection Easily with LINQ 6. Enhancing the Responsiveness of the Functional Program with Asynchronous Programming 7. Learning Recursion 8. Optimizing the Code using Laziness and Caching Techniques 9. Working with Pattern 10. Taking an Action in C# Functional Programming 11. Coding Best Practice and Testing the Functional Code

Built-in delegates

In C#, not only are we able to declare a delegate, but we are also able to use the built-in delegate from the C# standard library. This built-in delegate also applies to the generic data type, so let's discuss the generic delegate prior to discussing the built-in delegate.

Generic delegates

A delegate type can use a generic type as its parameter. Using the generic type, we can put off the specification of one or more types in parameters or return values until the delegate is initialized into a variable. In other words, we do not specify the data types of the delegate's parameters and return values when we define a delegate type. To discuss this in more detail, let's take a look at the following code, which we can find at GenericDelegates.csproj:

public partial class Program 
{ 
  private delegate T FormulaDelegate<T>(T a, T b); 
} 

We have a delegate name, FormulaDelegate, using the generic data type. As we can see, there is a T symbol, which represents...

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Functional C#
Published in: Dec 2016
Publisher: Packt
ISBN-13: 9781785282225
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