Book Image

.NET Core 2.0 By Example

By : Neha Shrivastava, Rishabh Verma
Book Image

.NET Core 2.0 By Example

By: Neha Shrivastava, Rishabh Verma

Overview of this book

With the rise in the number of tools and technologies available today, developers and architects are always exploring ways to create better and smarter solutions. Before, the differences between target platforms was a major roadblock, but that's not the case now. .NET Core 2.0 By Example will take you on an exciting journey to building better software. This book provides fresh and relevant content to .NET Core 2.0 in a succinct format that’s enjoyable to read. It also delivers concepts, along with the implications, design decisions, and potential pitfalls you might face when targeting Linux and Windows systems, in a logical and simple way. With the .NET framework at its center, the book comprises of five varied projects: a multiplayer Tic-tac-toe game; a real-time chat application, Let'sChat; a chatbot; a microservice-based buying-selling application; and a movie booking application. You will start each chapter with a high-level overview of the content, followed by the above example applications described in detail. By the end of each chapter, you will not only be proficient with the concepts, but you’ll also have created a tangible component in the application. By the end of the book, you will have built five solid projects using all the tools and support provided by the .NET Core 2.0 framework.
Table of Contents (16 chapters)
Title Page
Packt Upsell
Contributors
Preface
Index

Introduction to functional programming


We briefly discussed functional programming and F# in Chapter 1, Getting Started. In the F# primer section, we said that functional programming treats programs as mathematical expressions and evaluates expressions. It focuses on functions and constants, which don't change like variables and states. Functional programming solves complex problems with simple code; it is a very efficient programming technique for writing bug-free applications; for example, the null exception can be avoided using this technique.

Functional programming is language-agnostic, which means it is not language-specific. Functional programming focuses on a structured approach; it doesn't have multiple entry and exit points. It doesn't have goto statements, so it is easy to create small modules and create large modules using small blocks of structured code (or in other words sub-modules), which increases the re-usability of code. One function can be used as the input of another function...