Uses the following in an example: https://gist.github.com/aramkocharyan/4743836 https://gist.github.com/aramkocharyan/4743839

DeferredQueueTest.js

require([
  "dojo/Deferred"
	// Add DeferredQueue and DeferredWrapper imports here
], function (Deferred, DeferredQueue, DeferredWrapper) {

	var testDeferred = function () {
		// Create a wrapper around a callback that returns a deferred object
		return new DeferredWrapper(function () {
			// Create a dummy deferred object to finish in 2 seconds
			var df = new Deferred();
			setTimeout(function () {
				df.resolve();
			}, 2000);
		});
	}

	var queue = new DeferredQueue([
		// These will execute one after the other for 6 seconds
		testDeferred(),
		testDeferred(),
		testDeferred()
	]);
	queue.start();

});