I co-wrote limchess with a friend of mine for UNC Chapel Hill’s Comp 580 (Enabling Technology). The project is mostly JavaScript and leans heavily on jQuery to bring chess to the accessible world of limited-input devices.
I’ve since written other JavaScript, mostly in small chunks (for example, the Frosthaven Manager has a web server.
I’ve also written non-trivial frontend and backend JavaScript with Vue, React, and Node for various projects at Capital One.