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<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<meta name="keywords" content="remark,remarkjs,markdown,slideshow,presentation" />
<meta name="description" content="A simple, in-browser, markdown-driven slideshow tool." />
<title>AngularJS Presentation</title>
<link rel="stylesheet" href="presentation.css"></link>
</head>
<body>
<textarea id="source">
name: inverse
layout: true
class: center, middle, inverse
---
#AngularJS
Framework for Web Applications
.footnote[[angularjs.org](http://angularjs.org)]
---
## Web History
---
layout: false
.left-column[
## Static pages
]
.right-column[
```xml
<html>
<body>
<h1>Mattias homepage</h1>
<p>Welcome to my homepage</p>
</body>
</html>
```
]
---
.left-column[
## Static pages
## Generated pages
]
.right-column[
### perl
```perl
$name = "Mattias";
print "<html>";
print "<body>";
print "<h1>$name homepage</h1>";
print "<p>Welcome to my homepage</p>";
print "</body>";
print "</html>";
```
### php
```php
<html>
<body>
<h1><?php $name="Mattias"; echo $name ?> homepage</h1>
<p>Welcome to my homepage</p>
</body>
</html>
```
]
---
.left-column[
## Static pages
## Generated pages
## Javascript & DOM
]
.right-column[
```xml
<html>
<body>
<h1></h1>
<p>Welcome to my homepage</p>
<script>
h1 = document.getElementsByTagName("h1")[0];
h1.innerHTML = "Mattias Homepage";
</script>
</body>
</html>
```
- DOM Manipulation
- Browser compatibility problems!
]
---
.left-column[
## Static pages
## Generated pages
## Javascript & DOM
## jQuery
]
.right-column[
```xml
<html>
<body>
<h1></h1>
<p>Welcome to my homepage</p>
<script>
$("h1").innerHTML("Mattias Homepage");
</script>
</body>
</html>
```
- Powerful element selection
- Browser compatibility handled by library
- Same DOM manipulation
]
---
template: inverse
## Web Applications
.large-image[
]
---
## AngularJS
- Developed by Google
- Active project with large eco-system
- Supports modern browsers
---
## MVC - Model View Controller
.large-image[
]
---
.left-column[
## Model
]
.right-column[
Entire model contained in a single javascript data structure.
```javascript
$scope = {
employeeName: "Mattias",
company: "Net Insight AB"
}
```
]
---
.left-column[
## Model
## View
]
.right-column[
"Extended" html with references to model
```html
<h2>{{company}}</h2>
Employee name:
<input ng-model="employeeName">
</input>
<button ng-click="save_info()">Submit</button>
```
### Result
.sample[
<h2>Net Insight AB</h2>
Employee name:
<input value="Mattias"></input>
<button ng-click="save_info()">Submit</button>
]
]
---
.left-column[
## Model
## View
## Controller
]
.right-column[
Javascript code that populates the view and reacts to changes in it.
```javascript
function myCtrl( $scope ) {
$scope = {
employeeName: "Mattias",
company: "Net Insight AB"
};
$scope.save_info = function() {
console.log( $scope.employeeName );
};
}
```
]
---
template: inverse
name: example1
# Example 1
# Angular watches the model
---
## Controller populates Model
```javascript
function MyCtrl( $scope ) {
$scope.name = "World";
$scope.Click = function() {
alert( "Hello " + $scope.name );
}
}
```
---
## View
```html
<html ng-app>
<head>
<link rel="stylesheet"
href="../bower_components/foundation/css/foundation.min.css">
<script src="../bower_components/angular/angular.min.js"></script>
<script src="ex1.js"></script>
</head>
<body ng-controller="MyCtrl">
<div class="row">
<h1>{{name}}</h1>
<input type="text" ng-model="name">
<button ng-click="Click()">Click me</button>
</div>
</body>
</html>
```
<a href="ex1/index.html" target="_blank">Result</a>
---
template: inverse
# Example 2
# json data via http
---
## Request:
```
get "http://api.icndb.com/jokes/random"
```
## Response:
```javascript
{
"type": "success",
"value": {
"id": 459,
"joke": "Chuck Norris can solve the Towers of Hanoi in one move.",
"categories": ["nerdy"]
}
}
```
---
# Controller
```javascript
function MyCtrl( $scope, $http ) {
$scope.FetchJoke = function() {
$http.get( "http://api.icndb.com/jokes/random")
.then( function(response) {
$scope.data = response.data;
});
}
}
```
---
# Template
```html
<body ng-controller="MyCtrl">
<div class="row">
<h1>Joke {{data.value.id}}</h1>
<p>{{data.value.joke}}</p>
<button ng-click="FetchJoke()">Fetch joke</button>
</div>
```
<a href="ex2/index.html" target="_blank">Result</a>
---
template: inverse
name: example3
# Example 3
# Iterating through an array
---
## Request
```
get http://api.icndb.com/jokes/random/3
```
## Response
```javascript
{
"type": "success",
"value": [
{ "id": 513, "joke": "Chuck Norris does not...",
"categories": ["nerdy"] },
{ "id": 156, "joke": "There is no such...",
"categories": [] },
{ "id": 249, "joke": "Maslow's theory...",
"categories": [] }
]
}
```
---
## Controller
```javascript
function MyCtrl( $scope, $http ) {
$scope.FetchJokes = function() {
$http.get( "http://api.icndb.com/jokes/random/3")
.then( function(response) {
$scope.data = response.data;
});
}
}
```
---
## View
```html
<body ng-controller="MyCtrl">
<div class="row">
<h1>Chuck Norris jokes</h1>
<table>
<tr ng-repeat="joke in data.value">
<td>{{joke.id}}</td>
<td>{{joke.joke}}</td>
</tr>
</table>
<button ng-click="FetchJokes()">Fetch jokes</button>
</div>
</body>
```
<a href="ex3/index.html" target="_blank">Result</a>
---
template: inverse
# Example 4
# Showing stuff conditionally
---
template: inverse
# Custom directives
```html
<avatar username="username"></avatar>
```
```html
<div collapsable>This message can be collapsed</div>
```
*Separation of concerns*
---
template: inverse
# Routes and views
Entire application on one page but the url changes
---
# Routes and views
```javascript
.when("/ets/if/:interface/basic", {
templateUrl: "ets.if.basic.tmpl.html",
controller: "EtsIfBasicCtrl",
})
```
```html
<div ng-view></div>
```
*Separation of concerns*
---
template: inverse
# Services
Separate different parts of the codebase from each other using services
*Separation of concerns*
---
template: inverse
# Testability
Uses Dependency injection
Includes mocks for core services
---
template: inverse
# Real world test
---
## IP Interfaces Request
```
POST /data/oam
```
```javascript
[
{
"root": "ipconf.if.*",
"entries": "name address.0.inet? address.0.netmask? " +
"media.active media.current mtu"
}
]
```
---
## IP Interfaces Response
```javascript
{
"_success": true,
"_errors": [],
"ipconf": {
"if": {
"0": {
"name": "eth-aux",
"address": {},
"media": {
"active": "link down",
"current": "autoselect"
},
"mtu": "1500"
},
"1": { ... }
}
}
}
```
.panel[
Response built by node **without understanding the contents of oam**
]
---
# Code size
Current web: **172k** mostly minified js
Webapp: **146k** minified js
Can gzip compress down to one third.
Data per page is a lot smaller with AngularJS.
---
# Development Effort
- Powerful development and debugging environment
- Quick turnaround time
- Possible to write tests
- Very little code
- Fun!
---
name: last-page
template: inverse
## More info:
[angularjs.org](http://angularjs.org)
Instruction videos on [egghead.io](http://egghead.io)
AngularJS Google+ group
This presentation is available on
https://github.com/mattiash/angular-presentation
</textarea>
<script src="http://gnab.github.com/remark/downloads/remark-0.5.9.min.js" type="text/javascript"></script>
<script type="text/javascript">
var hljs = remark.highlighter.engine;
</script>
<script src="remark.language.js" type="text/javascript"></script>
<script type="text/javascript">
var slideshow = remark.create({
highlightStyle: 'monokai',
highlightLanguage: 'remark'
}) ;
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