Official Docs

The official TypeScript Documentation can be found at https://www.typescriptlang.org/docs/

Some particularly useful links from the docs include...

• Cheat Sheets: Syntax reference pages for different parts of everyday TypeScript code (like Classes, Interfaces, Types and Control Flow Analysis)
• Handbook:  A comprehensive document that explains TypeScript to everyday programmers
• Playground: A sandbox to experiment with TypeScript