An Overview of ng-conf 2014



 Michael Bromley

 www.michaelbromley.co.uk

 @michlbrmly

  • First conference of its kind
  • Salt Lake City, Utah
  • 16th - 17th January 2014


http://www.youtube.com/user/ngconfvideos

My Perspective



  • Intermediate-level JavaScript developer
  • Working with AngularJS for about 3 months
  • Eager to learn!

Types of talks




  • Talks about Angular
  • Talks about how to use "X" with Angular
  • Talk that weren't really about Angular at all
    (but the speaker just tagged on Angular integration to make it topical)

My picks




  • Not necessarily the best, but what I found most useful
  • You will probably have different picks

I'm not going to teach you




  • What did I learn?
  • Do you want to know more about that?
  • Watch the video!

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Let's begin!

Dave Smith - Dive Deep Into Custom Directives

  • Directives == complex?


RESTRICT

COMPILE 

LINK

ISOLATE SCOPE

TRANSCLUSION

Trans-what?!?

Example of custom directives



<div my-directive>...</div>

<my-widget>...</my-widget>


Pretty familiar so far...

built-in directives


<body ng-app="myApp">
<div ng-controller="myCtrl">
<li ng-repeat="item in items">...</li>
<div ng-show="isVisible">...</div>





Eureka moment: 
They are just directives!

Example - ng-show



var ngShowDirective = ['$animate', function($animate) {
    return function(scope, element, attr) {
       scope.$watch(attr.ngShow, function ngShowWatchAction(value){
       $animate[toBoolean(value) ? 'removeClass' : 'addClass'](element, 'ng-hide');
    });
  };
}];

restrict property


  .directive('myWidget', function() {
    return {
      restrict: 'E', // or A?..... or C? M?
      templateUrl: 'myWidget.html'
    };
  });


Guideline:
  • Use A (attribute) for behavioural directives
  • Use E (element) for re-usable components

// so I immediately improved my pagination component
<div dir-pagination></div> // Attribute = not so good
<dir-pagination><dir-pagination> // Element = better

Transclusion



  • Not actually that complicated
  • Allow your directive to contain arbitrary HTML
  • <my-modal-dialog>
    <h1>{{ dialog.title }}</h1>
    <p>{{ dialog.message }}</p>
</my-modal-dialog>
  • Used by ng-repeat, ng-switch, ng-if and others

Isolate Scope




  • Your directive won't inherit from the scope of its ancestors
  • Encapsulate your directive
  • Benefits for testing and re-use






watch it several times.

Vojta Jina - Dependency Injection


  • What is dependency injection (DI)?
  • Why is it so fundamental to AngularJS?

Why di?




  • The benefits of DI in managing your code as your app grows
  • The drawbacks of DI - too much hidden wiring behind the scenes?



testable = re-usable


Angular's DI is a bit complicated


  • provider?
  • service?
  • factory?
  • config?
  • run?
  • controller?
  • etc...

The future of di in Angular




  • Angular 2.0 is coming
  • DI will be simplified
  • ECMAScript 6 compatible (with examples)






Watch it!

Doubleclick team - writing a massive angular app


  • Oldest and largest Angular app in the world (possibly)
  • 71k lines of code
  • 129 controllers, 137 directives, 59 services

Authorization




  • How to implement on the client?
  • How to manage user settings?
  • Server-side rendering

5 approaches to code re-use


  • Inheritance
  • Mixins
  • Composition
  • Services
  • 'Helper Controllers'

Pros and cons of each

(links to jsFiddle on my blog post)

code re-use in angular




  • Services?
  • Controllers?
  • JS Objects?
  • Cut & paste? (joke)

Extending Angular services




  • Example of extending $resource, $httpBackend
  • Angular's basic functionality can be extended as and when needed






Watch it!




The Rest

angular-specific


  • Igor Minar - Angular === Community
  • Miško Hevery & Brad Green - Keynote
  • Angular Team Panel
  • Dan Wahlin - AngularJS in 20(ish) Minutes
  • Karl Seamon - Angular Performance
  • Sharon DiOrio - Filters Beyond OrderBy and LimitTo
  • Christian Lilley - Going Postal in Angular with Promises

Using Angular with "x"


  • Anant Narayanan - Building Realtime Apps with Firebase and Angular
  • Daniel Zen - Using AngularJS to Create iPhone & Android Apps
  • John Papa - Progressive Saving
  • Julie Ralph - End to End Testing with Protractor

Not Really about Angular




  • Ari Lerner - Robitics with AngularJS & Arduino
  • Tom Vallette & Gabe Dayley - Angular Weapon Defense

To conclude




  • Talks for every level
  • Expose yourself to something new
  • A little understanding goes a long way
  • Links and details at
    www.michaelbromley.co.uk




Thank you!

Overview of ng-conf 2014

By Michael Bromley

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Overview of ng-conf 2014

An overview of the presentations of ng-conf 2014

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