Promises.js

var app=angular.module('app',[]);

app.config(function ($routeProvider){
    $routeProvider
    .when('/',{
      templateUrl: 'app.html',
      controller: 'AppCtrl'
    })
    
});


app.controller('AppCtrl',function($scope,$q){
   var defer = $q.defer();
   defer.promise
   .then(function(){
     alert('I promised I would');
   })
   
   
   defer.resolve();
   
});