ex1.js

// using asynquence+iterable sequences

var domready;

ASQ()
// wait for `domready` before we proceed
.seq( domready = ASQ.iterable() )
.gate(
	requestJSON( "foo.json" ),
	requestJSON( "bar.json" )
)
.val( transformJSONs )
.seq( uploadJSON )
.seq( displayRecords )
.or( handleError );

$(document).ready( domready.next );

ex2.js

// using native promises

var domReady = new Promise($);

domReady.then(function (){
    return Promise.all([
	    requestJSON( "foo.json" ),
	    requestJSON( "bar.json" )
    ]);
}).then(transformJSONs)
	.then(uploadJSON)
	.then(displayRecords)
	.catch(handleError);

// see http://jsfiddle.net/modernserf/TyuPA/2/ for working code