TypeScript extends JavaScript by adding types to the language. TypeScript speeds up your development experience by catching errors and providing fixes before you even run your code.

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# …

TypeScript can be installed through three installation routes depending on how you intend to use it: an npm module, a NuGet package or a Visual Studio Extension.

The Playground lets you write TypeScript or JavaScript online in a safe and sharable way.

These introductions are intended to highlight key similarities and differences between TypeScript and your favored programming language, and clear up common misconceptions specific to …

TypeScript’s type system allows you to build new types out of existing ones using a large variety of operators. Now that we know how to write a few types, it’s time to start combining them in …

The main benefit of TypeScript is that it can highlight unexpected behavior in your code, lowering the chance of bugs. This tutorial provides a brief overview of TypeScript, focusing on its type …

TypeScript has the ability to rewrite code from newer versions of ECMAScript to older ones such as ECMAScript 3 or ECMAScript 5 (a.k.a. ES5). This process of moving from a newer or …

The relationship between TypeScript (TS) and JavaScript (JS) is rather unique among modern programming languages, so learning more about this relationship will help you understand …

TypeScript Cheat Sheets Downloadable syntax reference pages for different parts of everyday TypeScript code Learn more about Classes, Interfaces, Types and Control Flow Analysis …