User:Anonster/global.js

(function {   if (mw.config.get('wgCanonicalSpecialPageName') !== 'Contributions') {        return;    }    $('#contentSub').after( $('', {           'class': 'wds-button',            'href': mw.util.getUrl('Special:MyPage/chat.js'),            'text': 'My Chat.js',            'css': {                color: 'yellow'            }        }) ); });