JavaScript & TypeScript
The language of the web and of Node.js, with the types TypeScript adds on top.
Beginner
Start here. No background needed beyond school maths.
JavaScript Guide
The reference-quality guide to the language: values, functions, objects, promises and modules, kept current by Mozilla and the community.
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Node.js Learn
Official lessons for running JavaScript on the server: the runtime, modules, files, HTTP and testing.
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The Modern JavaScript Tutorial
A deep and clear tutorial that goes from the basics to closures, async code and the browser, with tasks after each chapter.
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TypeScript Handbook
The official guide to adding types to JavaScript: everyday types, narrowing, generics and how to set up a project.
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