MediaWiki:Common.js

/* Any JavaScript here will be loaded for all users on every page load. */
mw.loader.load( 'https://cdn.jsdelivr.net/npm/uikit@3.5.8/dist/js/uikit.min.js' );
mw.loader.load( 'https://cdn.jsdelivr.net/npm/uikit@3.5.8/dist/js/uikit-icons.min.js' );
mw.loader.load( 'https://cdn.jsdelivr.net/npm/clipboard@2.0.8/dist/clipboard.min.js' );
 var clipboard = new ClipboardJS('.btn');

      clipboard.on('success', function (e) {
        console.log(e);
      });

      clipboard.on('error', function (e) {
        console.log(e);
      });