Haskell Cheatsheet 2025

🧠 Write Haskell like a pro — fast, clean, confident.

This cheatsheet is your go-to quick reference for Haskell development, covering functional idioms, type patterns, common libraries, and real-world tips. Whether you're prepping for a tech interview, writing expressive backend logic, or leveling up your Haskell fluency — this sheet is built to save time and boost your confidence.

✅ What You’ll Get

🧩 Haskell language essentials — clean, concise, and up-to-date
⚙️ Common functional patterns, type tricks, and reusable abstractions
📌 Must-know techniques for interviews and production-grade Haskell
📄 PDF — printable, mobile-optimized, and easy to scan
📅 Updated for 2025

💡 Perfect for:

• Developers transitioning to Haskell from Python, JS, or Scala
• Haskell users prepping for software engineering or research interviews
• CS students and bootcamp grads learning functional programming
• Engineers building CLIs, APIs, or type-safe backends
• Anyone who wants to write clean, idiomatic, and reliable Haskell code

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

📥 Instant PDF download — keep it on your desktop, in your project folder, or open in VS Code or GHCI.