gistfile1.js

var q = require('q');


q.sequential = function(promises) {

    var results = [];

    return promises.reduce(function(aggregate, promise) {

        return aggregate.then(function() {
            return promise.then(function(result) {
                results.push(result);
            });
        })

    }, q()).then(function() {
        return results;
    })
}


function createNewMerchant() {
    return q('mymerchant');
}

function createNewYouthAccount() {
    return q('myyouth');
}


q.sequential([createNewMerchant(), createNewYouthAccount()]).spread(function(merchant, youth) {
    console.log(merchant, youth);
})