100 C# Tips I Wish I Knew Earlier (Part 1)

The article you've summarized provides a comprehensive list of C# features and best practices that can significantly improve the quality, readability, and performance of your code. Here's a structured breakdown of the key points:

Introduction

• Purpose: To highlight lesser-known but highly beneficial features in C#.
• Impact: These small changes can lead to cleaner, faster, and more maintainable code.

Basic Improvements

1. File-Scope Namespaces
   • Use namespace MyApp; at the top of a file instead of wrapping all content inside a namespace block.
2. Global Usings
   • Add commonly used namespaces in a global using directive to reduce redundancy and improve readability.
3. CallerArgumentExpression Attribute
   • Utilize this attribute for debugging purposes to get the expression that was passed as an argument.

Object-Oriented Enhancements

1. Default Interface Methods
   • Define default implementations for methods within interfaces, allowing derived classes to override them if needed.
2. Required Attributes
   • Use required on properties or parameters to ensure they are always initialized before use, enhancing type safety and preventing null reference exceptions.

Performance Optimizations

1. **Span<T>

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