I'm working with Richard Dawkins on jQuery UI based version of his old Blind Watchmaker Programs. I'm trying to get my JavaScript module to load in MediaWiki. Are jquery-ui.js and jquery-ui.css part of MediaWiki? Or can I add them easily?
Topic on Talk:JQuery
For anyone reading in the future, jQuery UI can be loaded via ResourceLoader, for example in JavaScript using mw.loader.load( 'jquery.ui' ), but even though it currently works and will work for some time, support for jQuery UI is scheduled to be deprecated and should generally be avoided.