TypeScript Documentation

Get Started

Quick introductions based on your background or preference.

• TS for the New Programmer
• TypeScript for JS Programmers
• TS for Java/C# Programmers
• TS for Functional Programmers
• TypeScript Tooling in 5 minutes

Handbook

A great first read for your daily TS work.

• The TypeScript Handbook
• The Basics
• Everyday Types
• Narrowing
• More on Functions
• Object Types
• Classes
• Modules

We also have an epub and pdf version of the Handbook.

Reference

Deep dive reference materials.

• Utility Types
• Decorators
• Declaration Merging
• Enums
• Iterators and Generators
• JSX
• Mixins
• Modules
• Module Resolution
• Namespaces
• Namespaces and Modules
• Symbols
• Triple-Slash Directives
• Type Compatibility
• Type Inference
• Variable Declaration

Tutorials

Using TypeScript in several environments.

• ASP.NET Core
• Gulp
• DOM Manipulation
• Migrating from JavaScript
• Using Babel with TypeScript

Declaration Files

Learn how to write declaration files to describe existing JavaScript. Important for DefinitelyTyped contributions.

• Introduction
• Declaration Reference
• Library Structures
• Do's and Don'ts
• Deep Dive
• Publishing
• Consumption

JavaScript

How to use TypeScript-powered JavaScript tooling.

• JS Projects Utilizing TypeScript
• Type Checking JavaScript Files
• JSDoc Reference
• Creating .d.ts Files from .js files

Project Configuration

Compiler configuration reference.

• What is a tsconfig.json
• Compiler Options in MSBuild
• TSConfig Reference
• tsc CLI Options
• Project References
• Integrating with Build Tools
• Configuring Watch
• Nightly Builds