https://qooxdoo.org/

qooxdoo is a universal JavaScript framework with a coherent set of individual components and a powerful toolchain. It is open source under liberal licenses and supported by the qooxdoo community around the world.

https://sergiopereira.com/articles/prototype.js.html

https://jquery.com/

http://www.dynamicdrive.com/

Dynamic Drive, the #1 place on the net to obtain free, original DHTML & Javascripts to enhance your website!

https://www.javascript.com/

Ready to try JavaScript?

http://www.pagetutor.com/javascript/index.html

Javascript Tutor, This free online version contains the first couple lessons that cover some basic topics.

http://www.javascriptlint.com/index.htm

http://www.javascriptkit.com/

JavaScript Kit, a comprehensive resource for JavaScript tutorials, scripts, and more.

http://jsdb.sourceforge.net/index.html

I started this project because I needed some tiny database engine to execute pseudo-dynamically, some static content.

https://www.java-scripts.net/