example.js

var most = require('most');

var widgets = most.from([
	{ id: 1, widgetId: 'nackjicholson-1', owner: 'nackjicholson' },
	{ id: 2, widgetId: 'nackjicholson-2', owner: 'nackjicholson' },
	{ id: 3, widgetId: 'nackjicholson-3', owner: 'nackjicholson' },
	{ id: 4, widgetId: 'nackjicholson-4', owner: 'nackjicholson' },
	{ id: 5, widgetId: 'nackjicholson-5', owner: 'nackjicholson' }
]);

widgets.reduce(function(acc, widget) {
	acc.collection.push(widget);
	console.log(acc);
	return acc;
}, {collection: []})
	.then(function(result) {
		console.log('I am KING NACKJICHOLSON behold my Widgets!');
	}, console.error);

output.txt

{ collection: [ { id: 1, widgetId: 'nackjicholson-1', owner: 'nackjicholson' } ] }
{ collection: 
   [ { id: 1, widgetId: 'nackjicholson-1', owner: 'nackjicholson' },
     { id: 2, widgetId: 'nackjicholson-2', owner: 'nackjicholson' } ] }
{ collection: 
   [ { id: 1, widgetId: 'nackjicholson-1', owner: 'nackjicholson' },
     { id: 2, widgetId: 'nackjicholson-2', owner: 'nackjicholson' },
     { id: 3, widgetId: 'nackjicholson-3', owner: 'nackjicholson' } ] }
{ collection: 
   [ { id: 1, widgetId: 'nackjicholson-1', owner: 'nackjicholson' },
     { id: 2, widgetId: 'nackjicholson-2', owner: 'nackjicholson' },
     { id: 3, widgetId: 'nackjicholson-3', owner: 'nackjicholson' },
     { id: 4, widgetId: 'nackjicholson-4', owner: 'nackjicholson' } ] }
{ collection: 
   [ { id: 1, widgetId: 'nackjicholson-1', owner: 'nackjicholson' },
     { id: 2, widgetId: 'nackjicholson-2', owner: 'nackjicholson' },
     { id: 3, widgetId: 'nackjicholson-3', owner: 'nackjicholson' },
     { id: 4, widgetId: 'nackjicholson-4', owner: 'nackjicholson' },
     { id: 5, widgetId: 'nackjicholson-5', owner: 'nackjicholson' } ] }
I am KING NACKJICHOLSON behold my Widgets!