$q.all semantics

<!DOCTYPE html>
<html>

<head>
  <script data-require="jquery@*" data-semver="2.0.3" src="http://code.jquery.com/jquery-2.0.3.min.js"></script>
  <script data-require="angular.js@*" data-semver="1.3.0-beta.5" src="https://code.angularjs.org/1.3.0-beta.5/angular.js"></script>
  <link rel="stylesheet" href="style.css" />
  <script src="script.js"></script>
</head>

<body ng-app='myApp'
      ng-controller='PromisesPromisesCtrl'>
  <h1>HTML Fetcher</h1>

  <button ng-click='addUrl()'>Add...</ng-click>
  <button ng-click='executeCalls(urls)'>Go Get Em</button>
  <hr/>
  <div ng-repeat='url in urls'>
    <input type='text' ng-model='url.url'> {{ url.url }} <br/>
  </div>
  <hr/>

  <h2>Logs</h2>
  <p ng-repeat='record in log track by $index'>
     <span ng-bind='record'></span>
  </p>
</body>

</html>

(function() { 
  'use strict';

  angular.module('myApp', [])
  .controller('PromisesPromisesCtrl', function($scope, asyncService) {
    $scope.log = [
    ];

    $scope.urls = [
      { url: 'ajax1.html'},
      { url: 'ajax2.html'},
      { url: 'ajax3.html'}
    ];

    $scope.addUrl = function() {
      $scope.urls.push('http://');
    };

    $scope.executeCalls = function() {
       $scope.log.length = 0;

       asyncService.loadDataFromUrls($scope.urls)
         .then(
           function(data) {
           $scope.results = data;
           $scope.log.push(Date.now() + ' - SUCCESS = ' + JSON.stringify(data));
          },
          function(error) {
           $scope.log.push(Date.now() + ' - ERROR - calls failed, error is\n\n' + JSON.stringify(error));
          },
          function(update) {
           $scope.log.push(Date.now() + ' - UPDATE - ' + update);
          });
    };
  }).service('asyncService', function($http, $q) {
      return {
        loadDataFromUrls: function(urls) {
          var deferred = $q.defer();
          var urlCalls = [];
          angular.forEach(urls, function(url) {
            urlCalls.push($http.get(url.url));
          });
          // they may, in fact, all be done, but this
          // executes the callbacks in then, once they are
          // completely finished.
          $q.all(urlCalls)
          .then(
            function(results) {
            deferred.resolve(
              JSON.stringify(results))
          },
          function(errors) {
            deferred.reject(errors);
          },
          function(updates) {
            deferred.update(updates);
          });
          return deferred.promise;
        }
      };
    });
  }());

/* Styles go here */

<p>This is one!</p>

<p>This is ajax 2</p>

<p>This is ajax 3</p>