csharp

C#

Modern C# development with .NET 8+, async patterns, and Entity Framework.

When to Use

• Enterprise Web Backends & Microservices: Building high-throughput ASP.NET Core web APIs and gRPC microservices on modern .NET 8/9.
• Cross-Platform Mobile & Desktop (MAUI): Compiling native iOS, Android, macOS, and Windows applications from a single C# codebase.
• Cloud-Native AWS & Azure Infrastructure: Deploying scalable serverless functions, containerized workers, and event-driven apps.
• Game Development with Unity / Godot: Developing gameplay logic, physics, and state machines in leading game engines.

Quick Start

public record User(string Id, string Name, string Email);

public class UserService
{
    public async Task<User?> GetUserAsync(string id)
    {
        return await _repository.FindByIdAsync(id);
    }
}

Core Concepts

Records & Pattern Matching (C# 12/13)

Immutable data structures with value equality and expressive switch expressions:

// Positional Record with built-in value equality
public record Order(string Id, decimal Amount, string Status);

public static class OrderClassifier
{
    public static string Evaluate(Order order) => order switch
    {
        { Status: "PAID", Amount: > 1000 } => "High-Value Order",
        { Status: "PAID" }                 => "Standard Order",
        { Status: "CANCELLED" }            => "Void Order",
        _                                  => "Pending Review"
    };
}

Memory Optimization with Span<T> and ReadOnlySpan<T>

Allocates and slices continuous memory buffers on the stack without heap GC allocations:

public static bool TryParseYear(ReadOnlySpan<char> dateSpan, out int year)
{
    // Slice without allocating new sub-strings
    ReadOnlySpan<char> yearSpan = dateSpan.Slice(0, 4);
    return int.TryParse(yearSpan, out year);
}

Async / Await with ValueTask

Efficient asynchronous programming minimizing task object allocations on hot paths: