Basic TypeScript Cheatsheet – The Ultimate Reference Guide

📄 Description

A comprehensive, printable PDF cheatsheet covering TypeScript from basics to advanced concepts, including types, interfaces, generics, decorators, and best practices. Perfect for quick reference, interviews, and daily coding.

📋 Summary of Contents

🔹 Core Concepts

✔ Type Annotations – Primitives, arrays, tuples, objects
✔ Interfaces & Types – Differences, unions, intersections, literals
✔ Functions – Typed params, rest, optional/default values

🔹 Advanced Features

✔ Generics – Reusable components, constraints, utility types
✔ Classes & OOP – Modifiers, abstract classes, inheritance
✔ Type Guards – typeof, instanceof, custom guards

🔹 Tooling & Best Practices

✔ tsconfig.json – Essential compiler options
✔ Modules – ES6 imports/exports, default exports
✔ Decorators – Class/method/property decorators

🔹 Bonus

✔ Utility Types – Partial, Pick, Omit, etc.
✔ Common Pitfalls – Avoiding any, strict mode benefits

🚀 Why This Cheatsheet?

✅ Saves Time – No more digging through docs for syntax
✅ Interview Ready – Covers common TypeScript questions
✅ PDF Format – Printable offline reference
✅ From Beginner to Pro – Gradual learning curve