What is jstutorial?

This is an open-source JavaScript tutorial book written in Chinese that teaches the JavaScript programming language with a focus on how it runs in web browsers and on client devices. It's essentially a free, community-maintained textbook covering the fundamentals and practical use of JavaScript for web development. The tutorial is structured as a collection of written lessons and explanations rather than a video course or interactive platform. It breaks down JavaScript concepts into digestible chapters that readers can work through at their own pace. The repository stores all the content and makes it publicly available so anyone can read it, learn from it, or contribute improvements. This project is useful for Chinese-speaking developers who are just starting to learn JavaScript, or for anyone learning web development who prefers reading structured explanations over scattered blog posts. It's the kind of resource that fills a gap when official documentation feels too terse or scattered tutorials don't follow a logical learning path. For someone building their first web application, having a single, cohesive book that covers JavaScript from the basics through intermediate topics provides much clearer direction than piecing together knowledge from multiple sources. It's worth noting that the repository itself is now deprecated, the maintainer has moved the project to a new location and recommends new readers visit the updated version instead. However, the original still exists as a reference and historical record. The fact that it's open source means anyone could technically continue maintaining it, and having the full source code preserved means the knowledge doesn't disappear if the original author stops updating it. This is one of the key benefits of publishing educational material as open source: it becomes a permanent, improvable resource rather than something that relies on a single maintainer.