Introduction

TypeScript is essentially JavaScript with superpowers. It keeps all the flexibility of JavaScript you love while adding static typing. Think of it as JavaScript with a type safety belt - you still ride the same motorcycle, just with extra protection.

Why TypeScript Over JavaScript?

JavaScript made web development possible, but TypeScript helped scale it to enterprise levels. You get better code completion in your editors, catch typos that would have taken hours to find, and build teams that can work on the same codebase without stepping on each other's toes.

let userId: number = 42;
let isActive: boolean = true;
let username: string = "devAdmin";

interface User {
    id: number;
    name: string;
    isAdmin: boolean;
}
const user: User = { id: 1, name: "Alice", isAdmin: false };