gistfile1.txt

var async = require('async'),
    _ = require('underscore');

var obj = {
  key: 'value'
};


async.series(_.map(obj, function(value, key) {
  return function(next) {
    $.ajax({
      complete: function() {
        next();
      }
    })
  };
}))


async.series([
  function(next) {
    $.ajax({
      complete: function() {
        next();
      }
    })
  },
  function(next) {
    $.ajax({
      complete: function() {
        next();
      }
    })
  }
], function(complete) {
  $.ajax({
    complete: complete
  });
});