I run a service business·I build them

TypeScript Tutorial

JavaScript with superpowers. Work through 5 free lessons at your own pace — every one with runnable examples you can edit.

Start with TypeScript Introduction

Getting Started

  1. 1TypeScript Introduction
  2. 2Basic Types

Type System

  1. 3Interfaces and Types
  2. 4Typed Functions

Advanced Types

  1. 5Generics