MDN Web DocsThe MDN Web Docs site provides information about Open Web technologies including HTML, CSS, and APIs for both Web sites and progressive web apps.
w3cschool官网w3cschool启用中文品牌名--编程狮,是一个专业的W3C前端开发及编程入门学习平台,提供包括HTML,CSS,Javascript,jQuery,C,PHP,Java,Python,Sql,Mysql等编程语言和开源技术的在线教程及使用手册,是类国外w3schools的W3C学习社区及菜鸟编程平台。
CodewarsA coding practice website for all programming levels – Join a community of over 3 million developers and improve your coding skills in over 55 programming languages!
无涯教程无涯教程网(www.learnfk.com)提供程序员在线零基础学IT编程技术菜鸟教程。包括w3cschool、Javascript、MySQL、PHP、Python、Java、HTML5、Go语言等入门基础教程,做东半球最好的IT自学教程网,程序员客栈编程网站