Async jquery multi ajax

module.js

define([ "when/parallel", "jquery" ], function (parallel, $) {

	var tasks = [ "url1", "url2", "url3" ].map(function (url) {
		return function () {
			return $.get(url);
		};
	});
	
	parallel(tasks)
		.then(function (results) {
			return results.reduce(function (sum, result) {
				return sum + result.property;
			}, 0) / results.length;
		})
		.tap(function (result) {
			alert(result);
		});
});