MediaWiki:Gadget-pagecount.js

$( function () {
	var topbar, pagecount, pages, output, 
		api = new mw.Api();
	
	topbar = $("nav ul#top-bar-right");
	pagecount = $('<li id="top-bar-pagecount"><a href="//dogcraft.net/wiki/Special:AllPages"><span></span><span>pages</span></a></li>');
	
	topbar.prepend(pagecount);
	
	api.get({action:"query",meta:"siteinfo",siprop:"statistics",formatversion:"2"}).done( function ( data ) {
		pages = data.query.statistics.articles;
		$("#top-bar-pagecount a span:first-child").innerText = pages;
	});
			
});