Web technology reference for developers
Structure of content on the web
Code used to describe document style
General-purpose scripting language
Protocol for transmitting web resources
Interfaces for building web applications
Developing extensions for web browsers
Learn web development
Learn to structure web content with HTML
Learn to style content using CSS
Learn to run scripts in the browser
Learn to make the web accessible to all
A customized MDN experience
Learn how to use MDN Plus
Frequently asked questions about MDN Plus
This page was translated from English by the community. Learn more and join the MDN Web Docs community.
JavaScript 引擎是解析和執行 JavaScript 程式的翻譯員。