npm install angular-async-loader

bower install https://github.com/subchen/angular-async-loader.git

<script src="node_modules/requirejs/require.js"></script>
<script src="bootstrap.js"></script>

require.config({
 baseUrl: '/',
 paths: {
 'angular': 'assets/angular/angular.min',
 'angular-ui-router': 'assets/angular-ui-router/release/angular-ui-router.min',
 'angular-async-loader': 'assets/angular-async-loader/angular-async-loader.min',
 'angular-ui-mask': 'assets/angular-ui-mask/dist/mask.min',
 'ng-tags-input': 'assets/ng-tags-input/build/ng-tags-input.min'
 },
 shim: {
 'angular': {exports: 'angular'},
 'angular-ui-router': {deps: ['angular']}
 }
});
require(['angular', './app-routes'], function (angular) {
 angular.element(document).ready(function () {
 angular.bootstrap(document, ['app']);
 angular.element(document).find('html').addClass('ng-app');
 });
});

define(function (require, exports, module) {
 var angular = require('angular');
 var asyncLoader = require('angular-async-loader');
 require('angular-ui-router');
 var app = angular.module('app', ['ui.router']);
 // initialze app module for angular-async-loader
 asyncLoader.configure(app);
 module.exports = app;
});

define(function (require) {
 var app = require('./app');
 app.config(['$stateProvider', '$urlRouterProvider', function ($stateProvider, $urlRouterProvider) {
 $urlRouterProvider.otherwise('/home');
 $stateProvider
 .state('home', {
 url: '/home',
 templateUrl: 'home/home.html',
 // new attribute for ajax load controller
 controllerUrl: 'home/homeCtrl',
 controller: 'homeCtrl'
 })
 .state('users', {
 url: '/users',
 templateUrl: 'users/users.html',
 // new attribute for ajax load controller
 controllerUrl: 'users/usersCtrl',
 controller: 'usersCtrl',
 // support to load more controllers, services, filters, ...
 dependencies: ['services/usersService']
 })
 .state('components', {
 url: '/components',
 templateUrl: 'components/components.html',
 // new attribute for ajax load controller
 controllerUrl: 'components/componentsCtrl',
 controller: 'componentsCtrl'
 });
 }]);
});

define(function (require) {
 var app = require('../app');
 // dynamic load services here or add into dependencies of ui-router state config
 // require('../services/usersService');
 app.controller('usersCtrl', ['$scope', function ($scope) {
 // shortcut to get angular injected service.
 var userServices = app.get('usersService');
 $scope.userList = usersService.list();
 }]);
});

define(function (require) {
 var app = require('../app');
 // dynamic load angular-ui-mask plugins for UI
 require('angular-ui-mask');
 app.useModule('ui.mask');
 // dynamic load ng-tags-input plugins for UI
 require('ng-tags-input');
 app.useModule('ngTagsInput');
 app.controller('componentsCtrl', ['$scope', function ($scope) {
 ......
 }]);
});

git clone https://github.com/subchen/angular-async-loader.git
cd angular-async-loader
./make.sh install
./make.sh test
open browser http://localhost:3000/