F# Cheatsheet 2025

🧠 Write F# like a pro — fast, clean, confident.

This cheatsheet is your go-to quick reference for F# development, covering functional idioms, performance tips, type tricks, and real-world workflows. Whether you're prepping for a technical interview, building backend systems, or sharpening your F# fluency — this sheet is built to save time and boost your confidence.

✅ What You’ll Get

🧩 F# language essentials — clean, concise, and up-to-date
⚙️ Common functional patterns, reusable code structures, and .NET best practices
📌 Must-know techniques for interviews and production-grade F# development
📄 PDF — printable, mobile-optimized, and easy to scan
📅 Updated for 2025

💡 Perfect for:

• Developers transitioning to F# from C#, Python, or JavaScript
• F# users prepping for .NET, backend, or fintech interviews
• CS students and bootcamp grads learning functional programming on .NET
• Engineers building APIs, CLIs, or domain-driven applications
• Anyone who wants to write expressive, correct, and performant F# code

🎯 Fast to read. Easy to use.
Designed for real-world F# development — with clarity, conciseness, and functional power in mind.

📥 Instant PDF download — keep it on your desktop, in your project folder, or open in VS Code, JetBrains Rider, or Visual Studio.