User:FusionSub/Testing.js

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$.when( mw.loader.using( [ 'mediawiki.util' ], $.ready ).then( function() { //Load mw.util
} ) ); 
var node = mw.util.addPortletLink(
    'p-cactions', //Add button to top bar
    mw.util.getUrl( 'Special:BlankPage' ), //Make the button go to [[Special:BlankPage]]
    'BlankPage' //Label the button as "BlankPage"
); //End var