.NET 4 for Enterprise Architects and Developers

Chapter 3

DLR, F#, and C# 4 New Features

Contents

3.1 Introduction

3.2 Dynamic Language Runtime (DLR) and Dynamic Languages

3.2.1 Dynamic Language Runtime (DLR)

3.2.1.1 DLR Key Functions

3.2.2 Dynamic Languages

3.2.3 Dynamic Languages versus Static Languages

3.3 Functional Programming and F#

3.3.1 Functional Programming

3.3.1.1 Key Principles

3.3.2 F#

3.4 C# 4

3.4.1 Improved Features

3.4.1.1 Covariance and Contravariance

3.4.1.2 COM Interoperability

3.4.2 New Featrues

3.4.2.1 Optional and Named Parameters

3.4.2.2 Dynamic Keyword

3.5 Summary

References

3.1 Introduction

In the earlier chapters, having built our understanding of CLR and Base Class Library, in this chapter we will take a cursory look ...