async.forEach

async_foreach.js

$('a#start-foreach').click(function() {
     var teams = ['seahawks', 'packers', 'steelers', 'chargers', 'chiefs' ];
                                                                            
     async.forEach(
         teams,    
         function(team, callback) {
             setTimeout(function() {
                 $('div#foreach').append(team + '<br />');
                 callback();                              
             }, Math.round(Math.random() * 5000));
         },                                       
         function(err) {
             $('div#foreach').append($('<p>').append('Done'));
         }                                                    
     );   
     return false;
 });