The Starting Point For Learning TypeScript

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
• Type Manipulation
• • Creating Types from Types
  • Generics
  • Keyof Type Operator
  • Typeof Type Operator
  • Indexed Access Types
  • Conditional Types
  • Mapped Types
  • Template Literal Types
• Classes
• Modules

Reference

Deep dive reference materials.

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

Modules Reference

How TypeScript models JavaScript modules.

• Introduction
• Theory
• Guides
• • Choosing Compiler Options
• Reference
• Appendices
• • ESM/CJS Interoperability

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
• .d.ts Templates
• • Modules .d.ts
  • Module: Plugin
  • Module: Class
  • Module: Function
  • Global .d.ts
  • Global: Modifying Module
• 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

Cheat Sheets

Downloadable syntax reference pages for different parts of everyday TypeScript code.

• Control Flow Analysis
• Classes
• Interfaces
• Types
• Download PDFs and PNGs

Learning Resources

Get Started

• JS to TS
• New to Programming
• OOP to JS
• Functional to JS
• Installation

Handbook

• Everyday Types
• Creating Types from Types
• Object Types
• Variable Declarations
• More on Functions

Tools

• Playground
• TSConfig Reference

Release Notes

• What's new in 5.7

Tutorials

• ASP.NET
• Migrating from JS
• Working with the DOM
• React & Webpack

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