promisemap.js

function fakePromise(id) {
  var deferred = $.Deferred();
  setTimeout(function() {
    console.log(id + ' is done');
    deferred.resolve(id);
  }, Math.random() * (1000 - 500) + 500);
  return deferred.promise();
}


var ids = [1, 2, 3, 5, 6];
var promises = ids.map(function(id) {
  return fakePromise(id);
});
$.when.apply(null, promises).done(function() {
  console.log('All done');
  console.log(Array.prototype.slice.call(arguments));
});