User:AntiCompositeNumber/hideEmpty.js

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Documentation for this user script can be added at User:AntiCompositeNumber/hideEmpty.

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//Adds a toolbox link on category pages to hide empty subcategories
$.when(mw.loader.using('mediawiki.util'), $.ready).then(function() { 
    if(mw.config.get('wgNamespaceNumber') === 14) {
	    $(mw.util.addPortletLink('p-tb', '#', 'Hide empty categories', 'tb-hideEmpty')).click(function(){
	    	$(".CategoryTreeItem span:contains('(empty)')").parent().parent().css("display", "none");
	    } );
    }
} );