The Art of AngularJS in 2015 - Angular Summit 2015

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The Art of in 2015
Matt Raible • http://raibledesigns.com

Blogger on raibledesigns.com
Founder of AppFuse
Father, Skier, Mountain
Biker, Whitewater Rafter
Web Framework Connoisseur
Who is Matt Raible?
Bus Lover

How to Become an Artist
Part 1 of 3: Learn the Basics on Your Own

Take some time and try various mediums of art

Recognize your strengths

Do your research and learn the basics

Get the supplies you will need

Observe the world around you

Make time for your art every day

Seek out the opinions of others

Develop your own style
http://www.wikihow.com/Become-an-Artist

Jobs on Dice.com
September 2015
0
500
1,000
1,500
2,000
Backbone
Angular
Em
ber
Knockout
React

Job Growth
0
500
1000
1500
2000
February 2014 January 2015 September 2015
Ember.js AngularJS Backbone Knockout React

LinkedIn Skills
September 2015
0
50,000
100,000
150,000
200,000
Backbone
Angular
Knockout
Em
ber
React

LinkedIn Skills
September 2015
0
15,000
30,000
45,000
60,000
Backbone
Knockout
Em
ber
React

Skills Growth
0
50000
100000
150000
200000
February 2014 January 2015 September 2015
Ember.js AngularJS Backbone Knockout React

Indeed Job Trends
Absolute
Relative

http://stackoverﬂow.com/research/developer-survey-2015

The Art of AngularJS in 2015 - Angular Summit 2015

The History of AngularJS
Started by Miško Hevery in 2009

GWT = 3 developers, 6 months

AngularJS = 1 developer, 3 weeks

Learn more:

https://www.youtube.com/watch?v=X0VsStcCCM8

The History of AngularJS
0
4500
9000
13500
18000
Lines of Code
17,000
1,000
AngularJS GWT

Hello World
<!doctype html>
<html ng-app>
<head>
<title>Hello World</title>
</head>
<body>
<div>
<label>Name:</label>
<input type="text" ng-model="name" placeholder="Enter a name here">
<hr>
<h1>Hello {{name}}!</h1>
</div>
<script src="http://code.angularjs.org/1.4.6/angular.min.js"></script>
</body>
</html>

Architecture Principles
Structure
Testability
Boilerplate
D.R.Y.

Getting Started
Start with Angular Seed

git clone https://github.com/angular/angular-seed.git

App Deﬁnition
var app = angular.module('myApp', []);
<!DOCTYPE html>
<html ng-app="myApp">

Data Binding
friend.js

friend.html

$scope.friend = {
name: "Fernand"
};
{{friend.name}} // 1-way
<input ng-model="friend.name"> // 2-way

Solving FOUC
This will work just ﬁne — if it’s not on the ﬁrst page:

Use ng-cloak or ng-bind attribute:

<p>{{friend.name}}</p>
<p ng-cloak>{{friend.name}}</p>
<p ng-bind="friend.name"></p>

Directives
<div ng-repeat="entry in news.entries">
<span ng-bind="entry.title"></span>
<button ng-click="delete($index)">
Delete
</button>
</div>

Directives with valid HTML5
<div data-ng-repeat="entry in news.entries">
<span data-ng-bind="entry.title"></span>
<button data-ng-click="delete($index)">
Delete
</button>
</div>
<div data-ng:repeat="entry in news.entries">
<span data-ng:bind="entry.title"></span>
<button data-ng:click="delete($index)">
Delete
</button>
</div>

Custom Directives
$scope.customer = {
name: 'Franklin',
address: '1830 Blake'
};
<div ng-controller="MyController">
<my-customer></my-customer>
</div>
.directive('myCustomer', function() {
return {
template: 'Name: {{customer.name}}
Address: {{customer.address}}'
};
});

Built-In Directives
ng-href

ng-src

ng-disabled

ng-checked

ng-readonly

ng-selected

ng-class

ng-style

Services
var services = angular.module('myApp.services', ['ngResource']);
services.factory('LoginService', function($resource) {
return $resource(':action', {}, {
authenticate: {
method: 'POST',
params: {'action': 'authenticate'},
headers: {'Content-Type': 'application/x-www-form-urlencoded'}
}
}
);
});
services.factory('NewsService', function($resource) {
return $resource('news/:id', {id: '@id'});
});

$http
$http({method: 'GET', url: '/news'}).
success(function(data, status, headers, config) {
// this callback will be called asynchronously
// when the response is available
}).
error(function(data, status, headers, config) {
// called asynchronously if an error occurs
// or server returns response with an error status.
});
$http.get('/news').success(successCallback);
$http.post('/news', data).success(successCallback);

$q
myApp.factory('HelloWorld', function($q, $timeout) {
var getMessages = function() {
var deferred = $q.defer();
$timeout(function() {
deferred.resolve(['Hello', 'world!']);
}, 2000);
return deferred.promise;
};
return {
getMessages: getMessages
};
});

$q
myApp.controller('HelloCtrl', function($scope, HelloWorld) {
HelloWorld.getMessages().then(function(messages) {
$scope.messages = messages;
});
});

Dependency Injection
.controller('LoginController', function($scope, $rootScope, $location,
$http, $cookieStore, LoginService) {
$scope.login = function () {
LoginService.authenticate($.param({username: $scope.username,  
password: $scope.password}),
function (user) {
$rootScope.user = user;
$http.defaults.headers.common[xAuthTokenHeaderName] = user.token;
$cookieStore.put('user', user);
$location.path("/");
});
};
})

Filters
also: lowercase, limitTo, orderBy
{{ name | uppercase }}

{{ 123.456789 | number:2 }}

{{ 1000 | currency }}

{{ ['Ari', 'Lerner', 'Likes', 'To', 'Eat', 'Pizza'] | filter:'e' }}

Routes
.config(['$routeProvider', '$locationProvider', '$httpProvider',
function ($routeProvider, $locationProvider, $httpProvider) {
$routeProvider.when('/create', {
templateUrl: 'partials/create.html', controller: 'CreateController'
});
$routeProvider.when('/edit/:id', {
templateUrl: 'partials/edit.html', controller: 'EditController'
});
$routeProvider.when('/login', {
templateUrl: 'partials/login.html', controller: 'LoginController'
});
$routeProvider.otherwise({
templateUrl: 'partials/index.html', controller: 'IndexController'
});
$locationProvider.hashPrefix('!');
}]
)

Routing: Navigation
$rootScope.logout = function () {
delete $rootScope.user;
delete $http.defaults.headers.common[xAuthTokenHeaderName];
$cookieStore.remove('user');
$location.path("/login");
};

UI-Router
angular.module('myApp.search', ['ui.router'])
.config(['$stateProvider', function ($stateProvider) {
$stateProvider
.state('search', {
url: '/search',
templateUrl: 'search/index.html',
controller: 'SearchController'
})
.state('edit', {
url: '/edit/:id',
templateUrl: 'search/edit.html',
controller: 'EditController'
})
.state('search-auto', {
url: '/search/:term',
})
}])

ngRoute
angular.module('myApp.search', ['ngRoute'])
.config(['$routeProvider', function ($routeProvider) {
$routeProvider
.when('/search', {
})
.when('/edit/:id', {
templateUrl: 'search/edit.html',
controller: 'EditController'
})
.when('/search/:term', {
})
}])

Testing
Karma - test runner, framework agnostic

Jasmine - unit tests, framework agnostic

Protractor - integration tests, Angular-speciﬁc

Lineman - productivity, framework agnostic

Testing: Controllers
describe("controller: LoginController", function() {
beforeEach(function() {
module("app");
});
beforeEach(inject(function($controller, $rootScope, $location,
AuthenticationService, $httpBackend) {
this.$location = $location;
this.$httpBackend = $httpBackend;
this.scope = $rootScope.$new();
this.redirect = spyOn($location, 'path');
$controller('LoginController', {
$scope: this.scope,
$location: $location,
AuthenticationService: AuthenticationService
});
}));

Testing: Controllers
afterEach(function() {
this.$httpBackend.verifyNoOutstandingRequest();
this.$httpBackend.verifyNoOutstandingExpectation();
});
describe("successfully logging in", function() {
it("should redirect you to /home", function() {
this.$httpBackend.expectPOST('/login',
this.scope.credentials).respond(200);
this.scope.login();
this.$httpBackend.flush();
expect(this.redirect).toHaveBeenCalledWith('/home');
});
});
});

Testing: Directives
beforeEach(inject(function($rootScope, $compile) {
this.directiveMessage = 'ralph was here';
this.html = "<div shows-message-when-hovered message='"
+ this.directiveMessage + "'></div>";
this.scope = $rootScope.$new();
this.scope.message = this.originalMessage = 'things are looking grim';
this.elem = $compile(this.html)(this.scope);
}));
describe("when a user mouses over the element", function() {
it("sets the message on the scope to the message attribute", function() {
this.elem.triggerHandler('mouseenter');
expect(this.scope.message).toBe(this.directiveMessage);
});
});

Testing: Directives with CoffeeScript
describe "directive: shows-message-when-hovered (coffeescript)", ->
Given -> module("app")
Given inject ($rootScope, $compile) ->
@directiveMessage = 'ralph was here'
@html = "<div shows-message-when-hovered
message='#{@directiveMessage}'></div>"
@scope = $rootScope.$new()
@scope.message = @originalMessage = 'things are looking grim'
@elem = $compile(@html)(@scope)
describe "when a user mouses over the element", ->
When -> @elem.triggerHandler('mouseenter')
Then "the message on the scope is set to the message attribute", ->
@scope.message == @directiveMessage

Testing: End-to-End
protractor = require("protractor")
require "protractor/jasminewd"
require 'jasmine-given'
describe "my angular app", ->
ptor = protractor.getInstance()
describe "visiting the login page", ->
Given -> ptor.get "/"
describe "when a user logs in", ->
Given -> ptor.findElement(protractor.By.input("credentials.username")).sendKeys "Ralph"
Given -> ptor.findElement(protractor.By.input("credentials.password")).sendKeys "Wiggum"
When -> ptor.findElement(protractor.By.id("log-in")).click()
Then -> ptor.findElement(protractor.By.binding("{{ message }}")).getText().then (text) ->
expect(text).toEqual "Mouse Over these images to see a directive at work"

Testing: End-to-End
browser.get('/');
expect(element.all(by.css('.img-responsive')).first().getAttribute("alt")).
toMatch(/StyleSelect/);
element(by.model('user.email')).sendKeys(email);
element(by.model('user.password')).sendKeys(password);
element(by.css('button[type=submit]')).click();
browser.driver.wait(protractor.until.elementIsVisible($('.app-content')));
var greeting = $('#greeting').getText();
var expectedGreeting = new RegExp('Welcome ' + firstName);
expect(greeting).toMatch(expectedGreeting);

Building with Grunt
sudo npm install
sudo npm install -g grunt-cli
vi package.json
"grunt": "0.4.5",
"grunt-contrib-concat": "0.5.1",
"grunt-contrib-uglify": "0.9.2",
"grunt-contrib-cssmin": "0.14.0",
"grunt-usemin": "3.1.1",
"grunt-contrib-copy": "0.8.1",
"grunt-rev": "~0.1.0",
"grunt-contrib-clean": "~0.6.0",
"matchdep": "~0.3.0"

Gruntﬁle.js
module.exports = function (grunt) {
require('load-grunt-tasks')(grunt);
grunt.initConfig({
pkg: grunt.file.readJSON('package.json'),
clean: ["dist", '.tmp'],
copy: {
main: {
expand: true,
cwd: 'app/',
src: ['**', '!js/**', '!lib/**', '!**/*.css'],
dest: 'dist/'
}
},
rev: {
files: {
src: ['dist/**/*.{js,css}', '!dist/js/shims/**']
}
},

Gruntﬁle.js
useminPrepare: {
html: 'app/index.html'
},
usemin: {
html: ['dist/index.html']
},
uglify: {
options: {
report: 'min',
mangle: false
}
}
});
// Tell Grunt what to do when we type "grunt" into the terminal
grunt.registerTask('default', [
'copy', 'useminPrepare', 'concat', 'uglify', 'cssmin', 'rev', 'usemin'
]);
};

index.html comments
<head>
<title>My AngularJS App</title>

<link rel="stylesheet" href="css/app.css"/>
<link rel="stylesheet" href="css/app2.css"/>

</head>
<body>

<script src="lib/angular/angular.js"></script>
<script src="lib/angular/angular-route.js"></script>
<script src="js/app.js"></script>
<script src="js/services.js"></script>
<script src="js/controllers.js"></script>
<script src="js/filters.js"></script>
<script src="js/directives.js"></script>

</body>

dist/index.html
<head>
<title>My AngularJS App</title>
<link rel="stylesheet" href="css/f050d0dc.seed.min.css"/>
</head>
<body>
<script src="js/8973cf0f.seed.min.js"></script>
</body>

After Grunt
http://raibledesigns.com/rd/entry/using_grunt_with_angularjs_for

You shouldn’t have to worry about FEO
http://raibledesigns.com/rd/entry/you_shouldn_t_have_to

HTTP/2 Performance Anti-Patterns?
Split dominant content domains

Reduce requests

Merging

Sprites

DataURIs
http://www.slideshare.net/andydavies

UI Bootstrap http://angular-ui.github.io/bootstrap
<script src="lib/angular/ui-bootstrap-0.13.4.min.js"></script>
<script src="lib/angular/ui-bootstrap-tpls-0.13.4.min.js"></script>
angular.module('myApp', ['ui.bootstrap']);

UI Bootstrap: Carousel
<div ng-controller="CarouselDemoCtrl">
<div style="height: 305px">
<carousel interval="myInterval">
<slide ng-repeat="slide in slides" active="slide.active">
<img ng-src="{{slide.image}}" style="margin:auto;">
<div class="carousel-caption">
<h4>Slide {{$index}}</h4>
<p>{{slide.text}}</p>
</div>
</slide>
</carousel>
</div>
</div>

Foundation for Apps http://foundation.zurb.com/apps

Native AngularJS directives based on
Foundation's markup and CSS

No dependency on jQuery or
Foundation's JavaScript is required
Angular Foundation http://pineconellc.github.io/angular-foundation/
<script src="bower_components/angular-foundation/mm-foundation.min.js"></script>
<script src="bower_components/angular_foundation/mm-foundation-tpls.min.js"></script>
angular.module('myApp', ['mm.foundation']);

Ionic Framework http://ionicframework.com

#dv13javaweb$
My Ionic Experience
http://raibledesigns.com/rd/entry/developing_an_ios_native_app

JHipster http://jhipster.github.io/

JHipster
Spring Boot

Spring Security

AngularJS

Bootstrap

Bower

Metrics

Java 7 or Java 8

Maven or Gradle

Authentication Type: cookie-based or
OAuth2

Type of Database: SQL or NoSQL

Caching: EhCache or Hazelcast

Grunt or Gulp.js
http://jhipster.github.io/
Foundational Frameworks Project Options

Angular 2.0
<input type="text" [value]="firstName">
<button (click)="addPerson()">Add</button>
<input type="checkbox" [checked]="someProperty">

Concepts Eliminated in 2.0
Controllers

Directive Deﬁnition Object

$scope

angular.module

jqLite

The Bad News
No migration path from Angular 1.x to 2.0

Angular 1.3 will be supported for 1.5 - 2 years

Will only support Evergreen Browsers (e.g. IE10+)

Learn more on

http://www.infoq.com/news/2014/10/angular-2-atscript

Good News!
Angular 1 and Angular 2 can be mixed in the same application

You can mix Angular 1 and Angular 2 components in the same view

Angular 1 and Angular 2 can inject services across frameworks

Data binding works across frameworks

http://angularjs.blogspot.com/2015/08/angular-1-and-angular-2-coexistence.html

Shortcut to becoming an Angular Artist
JUST DO IT.

Contact Me!

http://raibledesigns.com

@mraible

Presentations

http://slideshare.net/mraible

Code

http://github.com/mraible
Questions?

Who to follow on Twitter
AngularJS Team at Google

Miško Hevery - @mhevery

Igor Minar - @IgorMinar

Brian Ford - @briantford

Web Performance

Ilya Grigorik - @igrigorik

Andy Davis - @andydavies

Steve Souders - @Souders

My Experience in 2013
Developing with AngularJS Series

Part I: The Basics 
Part II: Dialogs and Data 
Part III: Services 
Part IV: Making it Pop

#dv13javaweb$
My Experience in 2013
http://vimeo.com/mraible/angularjs-deep-dive

2015 AngularJS Tutorials
Getting Started with AngularJS

http://raibledesigns.com/rd/entry/getting_started_with_angularjs

Testing AngularJS Applications

http://raibledesigns.com/rd/entry/testing_angularjs_applications

Spring and AngularJS http://spring.io/blog
http://spring.io/blog/2015/01/12/spring-and-angular-js-a-secure-single-page-application

The Art of AngularJS in 2015 - Angular Summit 2015

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