From Zero to Hero: Writing Clean Code with C#

Welcome

What will you learn in this course?

Who is this course for and prerequisites

Why Clean Code is essential

The Boy Scout Rule

The Broken Windows Theory

The YAGNI principle

The KISS principle

The Principle of Least Surprise

What is Coupling?

What is Cohesion?

Readability vs Performance

Spotting Duplication

Writing Idiomatic code

Section Recap

Introduction

The impact of Naming

How long should a Name be

Naming Variables

Naming Booleans

Naming Methods

Naming Classes

Using Acronyms and Abbreviations

Section Recap

Introduction

Good and Bad Comments

Removing Historic Comments

Converting Comments to Code

Removing Formatting Comments

Replacing Comments with Tests

Section Recap

Introduction

Applying Indentation

Using Braces

Using Whitespace

Vertically Ordering a Class

Section Recap

Introduction

Writing Boolean Comparisons

Removing Double Negatives

Avoiding short-circuits

Avoiding Magic Numbers

Expressive Switch Statements

Section Recap

Introduction

Removing Nesting

Returning early

Using Guard Clauses

Applying the Single Responsibility Principle

Removing Flag Arguments

Parameter Order

Controlling the number of Parameters

Output Parameters

Working with collections

Section Recap

Introduction

Exceptions vs Error Codes

Writing the Try-Catch block

Providing Context with Exceptions

Section Recap

Introduction

Applying the Single Responsibility Principle

Segregating Interface

Writing Constructors

Removing Nested Classes

Converting anemic to rich objects

Primitive Obsession

Section Recap

Introduction

The Problem of Nulls

Creating Null Objects

Rewriting Null Returns

Section Recap

Introduction

The importance of Tests to Clean Code

Writing better assertions

Using the Act, Arrange, Assert structure

Replacing Mocks with real Objects

Using Test Data Builders

Using realistic test data

Section Recap

Introduction

Measuring code complexity

Using refactoring tools

Applying Standards with an editorconfig

Using a Spell Checker

Enforcing Code Quality

Section Recap

Refactoring Walkthrough

Conclusion