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.

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 system.

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 …

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

An editor that supports TypeScript can deliver “quick fixes” to automatically fix errors, refactorings to easily re-organize code, and useful navigation features for jumping to definitions of a variable, or …

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

These may be legitimate problems with the code, or TypeScript being overly conservative. Throughout this guide we’ll demonstrate how to add various TypeScript syntax to eliminate such errors.

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

We looked at some common pain points and papercuts users have when they create a new TypeScript project. For example, most users write in modules (not global scripts), and --moduleDetection can …

In this chapter, we’ll cover some of the most common types of values you’ll find in JavaScript code, and explain the corresponding ways to describe those types in TypeScript.