Boyan Mihaylov is a software engineer with a B.Sc. and M.Sc. in relevant fields and over 5 years of professional experience, specializing in technologies like C#, JavaScript, and PHP. The document outlines key concepts and advanced techniques in AngularJS, including dirty checking, promises, and module separation of concerns, along with practical advice for handling complex client applications. It emphasizes the importance of asynchronous requests and proper management of dependencies to improve performance.

1. Boyan Mihaylov
boyan.mihailov@gmail.com
http://www.linkedin.com/in/bmihaylov

2.  B.Sc. in Software Engineering at The University of
Sofia
 M.Sc. in Computer Science at The University of
Copenhagen, Denmark
 5+ years of professional experience
 Favorite technologies
 C#
 JavaScript
 PHP

3.  jQuery is too low-level
 Need to handle complex clients
 MV* pattern on the client
 No DOM operations
 Testability
 Huge community
 33 439+ questions on Stack Overflow

4.  Demo, demo, demo
 Practical advices
 Short overview of the main concepts
 Some advanced techniques

6.  Dirty checking (used by AngularJS)
 Compares a value against the previous value
 Works in all browsers
 Totally predictable
 Change events (e.g., Knockout)
 Trigger an event on every change
 Can update UI before all the changes has completed
 Bad performance
 Has to consider dependency tracking

7.  Make only async requests
 Otherwise the browser hangs
 Promises
 Gives you a promise that you will receive a reply in the
future
 Can be controlled by a deferred object
 Resolve() / Reject()
 Chaining of promises
 One promise can change the value returned by another
promise

8.  AngularJS uses modules
 A LOT!
 Separation of concerns
 Plug and play
 Dependencies between modules

14.  Basic structure for small applications
 Can contain further folders for complex applications

15.  Directives – isolate a piece of logic
 Can be declared as
 HTML attributes
<div hello></div>
 CSS classes
<div class=“hello”></div>
 HTML tags
<hello>there</hello>

16.  AngularJS offers services
 Can contain light domain logic
 N.B. Domain logic should be on the server, exposed via
API
 Relies on the data from the server
 Can also be data-less

17.  The glue between the controllers and the UI
 Only one root scope
 Many children
 Children are prototypically created from the parent
scope
 $rootScope.hello = ‘there’;
$childScope = prototype of $rootScope
alert($childScope.hello); // ‘there’

18.  http://angularjs.org/
 http://www.angularjshub.com
 http://plus.google.com/+AngularJS
 http://code.dortikum.net/2014/02/15/from-
xmlhttprequest-to-promises/