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Clean Code with C#
Clean Code with C#

Clean Code with C# : Refactor your legacy C# code base and improve application performance using best practices , Second Edition

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Clean Code with C#

Coding Standards and Principles in C#

The primary goal of coding standards and principles in C# is for programmers to become better at their craft by programming code that is more performant and easier to maintain. In this chapter, we will look at some examples of good code contrasted with examples of bad code. This will lead nicely into discussing why we need coding standards, principles, and methodologies. As we delve into coding standards, we will consider conventions for naming, commenting, and formatting source code, including classes, methods, and variables.

A big program can be rather unwieldy to understand and maintain. For programming teams, getting to know the code and what it does can be a daunting prospect, and they can find it hard to work together on such projects. Because of this, we will look at how to use modularity to break programs down into smaller modules that all work together to produce a fully functioning solution that is also fully testable, can be worked...

Technical requirements

To work on the code in this book, you will need to download and install the latest version of Visual Studio Community Edition. The IDE can be downloaded from https://visualstudio.microsoft.com.

Note

There are no code samples for this chapter.

Good code versus bad code

Both good and bad code compile. There are reasons why code is labeled good code and bad code, as shown in the following comparison table:

Good Code

Bad Code

Proper indentation

Improper indentation

Meaningful comments

Comments that state the obvious

API documentation comments

Comments that excuse bad code and commented-out lines of code

Proper organization using namespaces

Improper organization using namespaces

Good naming conventions

Bad naming conventions

Classes that do one thing

Classes that do multiple things

Methods that do a single...

The need for coding standards, principles, and methodologies

As a C# programmer, coding standards, principles, and methodologies are important for several reasons:

  • Consistency: Coding standards, principles, and methodologies help ensure consistency across a code base. By following these guidelines, developers can ensure that their code is written in a similar style and adheres to the same best practices, making it easier for other developers to understand, modify, and maintain the code.
  • Quality: Coding standards, principles, and methodologies promote the use of best practices that improve code quality, such as error handling, documentation, and modular design. Following these guidelines can help reduce bugs, improve performance, and make the code more maintainable over time.
  • Collaboration: When a team of developers is working on a project, everyone must be on the same page. Coding standards, principles, and methodologies can help ensure that everyone is working toward...

Summary

In this chapter, you were introduced to good code and bad code and, hopefully, you now understand why good code matters.

In software development, bad code refers to poorly written and structured code that is difficult to maintain, understand, and modify. In contrast, good code is well-written, structured, and maintainable, making it easier to understand and modify over time. To ensure that code is of high quality, software development teams often use coding standards, which define a set of rules and guidelines for writing code.

In addition to coding standards, software development also relies on principles and methodologies to guide the development process. Principles such as SOLID and DRY are used to ensure that code is maintainable and scalable over time.

Different software development methodologies such as Agile, Scrum, Waterfall, Spiral, RAD, and FDD offer different approaches to the software development process, each with its strengths and weaknesses. Agile methodologies...

Questions

  1. What is bad code?
  2. What is good code?
  3. What are some common signs of bad code?
  4. What are some common coding standards?
  5. What are some coding principles?
  6. What is agile software development?
  7. What is test-driven development (TDD)?
  8. What is refactoring?

Further reading

Here is a list of books on coding standards, principles, and methodologies, along with summaries of each:

  • Clean Code: A Handbook of Agile Software Craftsmanship, by Robert C. Martin: This book provides a comprehensive guide to writing clean, maintainable code using best practices and principles of software craftsmanship.
  • Code Complete: A Practical Handbook of Software Construction, by Steve McConnell: This book covers software development best practices and techniques, including code construction, debugging, testing, and maintenance.
  • The Pragmatic Programmer: From Journeyman to Master, by Andrew Hunt and David Thomas: This book offers practical advice for improving code quality, productivity, and professionalism, and covers topics such as code organization, testing, and refactoring.
  • Design Patterns: Elements of Reusable Object-Oriented Software, by Erich Gamma, Richard Helm, Ralph Johnson, and John Vlissides: This book covers design patterns, which...
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Key benefits

  • Write code that seamlessly integrates with other systems while maintaining well-defined software boundaries
  • Understand how coding principles and standards elevate software quality
  • Learn how to avoid common errors while implementing concurrency or threading
  • Purchase of the print or Kindle book includes a free PDF eBook

Description

Traditionally associated with Windows desktop applications and game development, C# has expanded into web, cloud, and mobile development. However, despite its extensive coding features, professionals often encounter issues with efficiency, scalability, and maintainability due to poor code. Clean Code in C# guides you in identifying and resolving these problems using coding best practices. This book starts by comparing good and bad code to emphasize the importance of coding standards, principles, and methodologies. It then covers code reviews, unit testing, and test-driven development, and addresses cross-cutting concerns. As you advance through the chapters, you’ll discover programming best practices for objects, data structures, exception handling, and other aspects of writing C# computer programs. You’ll also explore API design and code quality enhancement tools, while studying examples of poor coding practices to understand what to avoid. By the end of this clean code book, you’ll have the developed the skills needed to apply industry-approved coding practices to write clean, readable, extendable, and maintainable C# code.

Who is this book for?

This coding book is for proficient C# developers, team leads, senior software engineers, and software architects who want to improve the efficiency of their legacy systems. A strong understanding of C# programming is assumed.

What you will learn

  • Master the art of writing evolvable and adaptable code
  • Implement the fail-pass-refactor methodology using a sample C# console application
  • Develop custom C# exceptions that provide meaningful information
  • Identify low-quality C# code in need of refactoring
  • Improve code performance using profiling and refactoring tools
  • Create efficient and bug-free code using functional programming techniques
  • Write cross-platform code using MAUI
  • Develop cloud-deployable microservices for versatile applications

Product Details

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Publication date, Length, Edition, Language, ISBN-13
Publication date : Dec 22, 2023
Length: 492 pages
Edition : 2nd
Language : English
ISBN-13 : 9781837632992
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Product Details

Publication date : Dec 22, 2023
Length: 492 pages
Edition : 2nd
Language : English
ISBN-13 : 9781837632992
Category :
Languages :

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Table of Contents

17 Chapters
Chapter 1: Coding Standards and Principles in C# Chevron down icon Chevron up icon
Chapter 2: Code Review – Process and Importance Chevron down icon Chevron up icon
Chapter 3: Classes, Objects, and Data Structures Chevron down icon Chevron up icon
Chapter 4: Writing Clean Functions Chevron down icon Chevron up icon
Chapter 5: Exception Handling Chevron down icon Chevron up icon
Chapter 6: Unit Testing Chevron down icon Chevron up icon
Chapter 7: Designing and Developing APIs Chevron down icon Chevron up icon
Chapter 8: Addressing Cross-Cutting Concerns Chevron down icon Chevron up icon
Chapter 9: AOP with PostSharp Chevron down icon Chevron up icon
Chapter 10: Using Tools to Improve Code Quality Chevron down icon Chevron up icon
Chapter 11: Refactoring C# Code Chevron down icon Chevron up icon
Chapter 12: Functional Programming Chevron down icon Chevron up icon
Chapter 13: Cross-Platform Application Development with MAUI Chevron down icon Chevron up icon
Chapter 14: Microservices Chevron down icon Chevron up icon
Assessments Chevron down icon Chevron up icon
Index Chevron down icon Chevron up icon
Other Books You May Enjoy Chevron down icon Chevron up icon

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