🟢 TypeScript with Node.js Using TypeScript with Node.js helps you build scalable, type-safe backend applications with fewer runtime errors and better developer experience. 🧠 Why Use TypeScript with Node.js? ✅ Strong typing for backend...
⚙️ TypeScript Configuration (tsconfig.json) TypeScript Configuration is done using a file called tsconfig.json. This file tells the TypeScript compiler how to compile your code and which rules to follow. 📄 What is tsconfig.json? A...
🚀 TypeScript 5 Updates (What’s New & Improved) TypeScript 5.x series (5.0, 5.1, 5.2, 5.3, 5.4, etc.) brings a bunch of upgrades to performance, language features, tooling, and modern JavaScript support. These updates aim...
📦 TypeScript DefinitelyTyped (@types) In TypeScript DefinitelyTyped is a community-maintained repository that provides TypeScript type definitions for JavaScript libraries that are not written in TypeScript. 👉 These type definitions are published on npm under...
🚫 TypeScript null and undefined In TypeScript null and undefined represent absence of a value, but they are not the same. Understanding them is crucial—especially when strictNullChecks is enabled (recommended). 1️⃣ What is undefined?...
🔑 TypeScript keyof In TypeScript keyof keyword is used to get a union of property names (keys) of an object type. 📌 Think of keyof as:“Give me all the keys of this type” 1️⃣...
🧰 TypeScript Utility Types TypeScript Utility Types are built-in TypeScript helpers that transform existing types instead of rewriting them. They make your code cleaner, safer, and more maintainable—especially in real projects. 1️⃣ Partial<T> Makes...
🧬 TypeScript Generics TypeScript Generics allow you to write reusable, type-safe code that works with multiple types instead of a single one. 📌 Think of generics as placeholders for types 1️⃣ Why Generics? Without...
🏛️ TypeScript Classes In TypeScript classes are blueprints for creating objects. They support Object-Oriented Programming (OOP) concepts like encapsulation, inheritance, and polymorphism, with strong typing. 1️⃣ Basic Class class Person { name: string; age: number;constructor(name:...
🔁 TypeScript Casting (Type Assertions) TypeScript Casting (officially called Type Assertions) is used when you want to tell TypeScript the exact type of a value. 📌 Casting does not change the value at runtimeIt...