async map

async_map.js

function asyncMap(promises, callback) {
    var results = [];
    for(var p in promises) {
       if(!promises.hasOwnProperty(p)) { continue; }
       promises[p].done(function(result) {
            results.push(callback(result))
       })
    }
    return $.when.apply(null,promises).pipe(function() { return results });
}​