Marks-solution

gistfile1.js

// for the origina blog post check
// http://www.markhneedham.com/blog/2011/09/25/jquery-collecting-the-results-from-a-collection-of-asynchronous-requests/

var people = ["Marc", "Liz", "Ken", "Duncan", "Uday", "Mark", "Charles"];
asyncLoop(people, [], function(name, grid, callBackFn) {
  // parse data and create something cool
  grid.push(somethingCool);
  callBackFn();
}, function(grid) {
  // do something with grid
});

function asyncLoop(collection, seedResult, loopFn, completionFn) {
  var copy = collection.slice(0);
  (function loop() {
    var item = copy.shift();
 
    if(copy.length == 0) {
      completionFn(seedResult);
    } else {
      loopFn(item, seedResult, loop);
    }	
  })();	
}