C# 10 & 11: Unleash the Power of Records, Global Usings, Extended Patterns, and More!

 Here are 5 of the latest C# tips, along with code examples:

1. Record Types (C# 10):

• Create lightweight, immutable data structures with concise syntax.
• Useful for representing data without the overhead of full-fledged classes.

C#

record Point(int X, int Y);

Point p = new Point(5, 10);  // Create a record instance
Console.WriteLine(p.X);      // Access record members

2. Global Using Directives (C# 10):

• Reduce repetitive using statements in multiple files.
• Improve code readability and maintainability.

C#

// In a global using file:
global using System.Collections.Generic;
global using System.Linq;

// In other files:
List<int> numbers = new List<int>();
int sum = numbers.Sum();    // No need for local using statements

3. Extended Property Patterns (C# 11):

• Match and deconstruct properties for more flexible pattern matching.
• Useful for data extraction and transformation.

C#

Point p = new Point(5, 10);
if (p is { X: var x, Y: var y })
{
    Console.WriteLine($"X: {x}, Y: {y}");
}

4. File-Scoped Namespaces (C# 10):

• Organize code within a file without nested namespaces.
• Improve code clarity and reduce indentation.

C#

namespace MyApp
{
    fileprivate class MyClass
    {
        // ...
    }
}

5. Native Size Struct Types (C# 11):

• Represent platform-specific data sizes for memory-efficient and performant code.
• Useful for low-level operations and interoperability with native code.

C#

// Represents a 4-byte integer on a 32-bit platform
native struct nint { }

nint value = 42;

Remember: C# is constantly evolving, so stay up-to-date with the latest features to write more expressive, concise, and performant code.

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