AngularJS $q Promise サンプル02

var app = angular.module('app', []);
app.controller('Ctrl', function($q, $timeout) {
  function asyncHello(name) {
    var deferred = $q.defer();
    $timeout(function() {
      deferred.resolve('Hello, ' + name);
    }, 1000);
    return deferred.promise;
  }
  var r = document.getElementById('result');
  var promise = asyncHello('sato');
  promise.then(
    function(msg) {
      r.innerHTML = msg;
    }
  );
});