try05.html

<!DOCTYPE html>
<html>
<head>
    <title>I promised I will try Q</title>
    <script src="./lib/q/q-20130830/q.js"></script>
    <script>
        // Q.all() and spread()
        var stepA = function () {
            console.log("This is step A, args=", arguments);
            return "ret A";
        };
        var stepB = function () {
            console.log("This is step B, args=", arguments);
            return "ret B";
        };
        var finalStep = function (retA, retB) {
            console.log("This is the final step, args=", arguments);
        };
        var promise = Q.all([Q.fcall(stepA), Q.fcall(stepB)]);
        promise.spread(finalStep);
    </script>
</head>
<body>
Check console.
</body>
</html>