TypeScript is JavaScript with syntax for types. TypeScript is a strongly typed programming language that builds on JavaScript, giving you better tooling at any scale.

Free online TypeScript tutorial from W3Schools.com, complete with Try it Yourself examples and exercises.

TypeScript (TS) is a high-level programming language that adds static typing with optional type annotations to JavaScript. It is designed for developing large applications. It transpiles to JavaScript. …

TypeScript is a language for application-scale JavaScript. TypeScript adds optional types to JavaScript that support tools for large-scale JavaScript applications for any browser, for any host, on any OS. …

2026年3月11日 · TypeScript is a superset of JavaScript that adds extra features like static typing, interfaces, enums, and more. Essentially, TypeScript is JavaScript with additional syntax for defining …

A new documentation for typescript 💻 Try TypeScript Online The TypeScript Playground is your interactive environment to write, test, and share TypeScript code directly in the browser.

2026年4月21日 · The TypeScript type-checker does all this, and is also the foundation of great tooling in your editor and elsewhere, making coding even easier. If you've written JavaScript in editors like …

TypeScript Tutorial TypeScript is typed JavaScript. TypeScript adds types to JavaScript to help you speed up the development by catching errors before you even run the JavaScript code. TypeScript is …

Introduction to TypeScript What is TypeScript TypeScript is an open-source language maintained and developed by Microsoft. Basically, TypeScript adds additional syntax to JavaScript to support a …

learn-ts.org is a free interactive TypeScript tutorial for people who want to learn TypeScript, fast.

TypeScript takes tooling seriously, and that goes beyond completions and errors as you type. An editor that supports TypeScript can deliver "quick fixes" to automatically fix errors, refactorings to easily re …

2026年4月15日 · TypeScript 6.0 changes defaults, deprecates legacy options, and adds ES2025 support, Temporal types, and migration tips before TypeScript 7.0.

Learn how to use the Typescript language from top-rated programming instructors. Whether you’re interested in building user-friendly websites in Angular, or understanding the fundamental uses of …

2026年3月23日 · Microsoft released TypeScript 6.0 on March 23, the last version built on the original JavaScript codebase, with three post-RC changes and a wave of deprecations designed to ready …

Find TypeScript starter projects: from Angular to React or Node.js and CLIs.

2026年1月12日 · Microsoft's TypeScript 7, codenamed Project Corsa, transforms the compiler with a complete rewrite in Go, achieving up to 10x faster builds and reduced memory usage. With strict …

83 new() describes a constructor signature in typescript. What that means is that it describes the shape of the constructor. For instance take {new(): T; }. You are right it is a type. It is the type of a class …

TypeScript is a syntactic superset of JavaScript which adds static typing. This basically means that TypeScript adds syntax on top of JavaScript, allowing developers to add types.

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