gistfile1.js

  var deferred = require('deferred');

  User.find(115).success(function(user){
		var categoryNamesDeferred = deferred();
		user.getUserInterests().success(function(interests) {
			var interestNames = [];
			var innerDeferreds = [];
			interests.forEach(function(interest) {
				var catDeferred = deferred();
				innerDeferreds.push(catDeferred);
				var categoryName = null;
				interest.getInterestCategory().success(function(ic) {
					if (ic) {
						catDeferred.resolve(ic.name);
					}
				});

				interest.getInterestSubcategory().success(function(ic) {
					if (ic) {
						catDeferred.resolve(ic.name);
					}
				});

			});

			var deferredsResolved = 0;
			innerDeferreds.forEach(function(innerDeferred) {
				innerDeferred.promise(function(name) {
					interestNames.push(name);
					deferredsResolved++;
					if (deferredsResolved==innerDeferreds.length) {
						categoryNamesDeferred.resolve(interestNames);
					}
				});
			});

		});

		categoryNamesDeferred.promise(function(names) {
			// DO something with categories here....
			console.log(names);
		});
	});