Getting Started with TypeScript: A Quick Guide

What Is TypeScript?

TypeScript is a superset of JavaScript — every valid piece of JavaScript is also valid TypeScript. The TypeScript compiler outputs plain JavaScript; browsers never execute TypeScript directly.

Why It's Worth Knowing

Generics let a function or class work with multiple data types while staying fully type-safe, without duplicating code. If you're just getting started with TypeScript, these few points already give you a clear picture of how it's used in real projects.