October 2008
Beginner to intermediate
491 pages
12h 20m
English
book
The ActionScript 3.0 Quick Reference Guide
by Jen deHaan, David Stiller, Darren Richardson, Rich Shupe
Content preview from The ActionScript 3.0 Quick Reference Guide
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Chapter 3. Looking at the Changes in ActionScript 3.0
The documentation for Flash CS4 Professional includes a tremendously useful table titled “ActionScript 2.0 Migration.” An introductory caption humbly states, “The following table describes the differences between ActionScript 2.0 and 3.0,” which leads to a catalog so lengthy, it would fill over 50 pages if reproduced in this book. To locate this document, look in the appendixes of the ActionScript 3.0 Language and Components Reference or search the term “migration” in the Help panel. This document is also available on the Adobe online Help Resource Center:
| http://help.adobe.com/en_US/AS3LCR/Flash_10.0/migration.html |
This chapter will help you find your bearings from a migration standpoint, and navigate among these changes.
Major Changes and Obsolete Code
As programming languages evolve, existing workflows may change, new features are usually added, and older features are sometimes removed. This is as true for ActionScript as it is for Java, C#, Python, PHP, and countless others. In the company of programmers at large, you’re not alone. The changes in ActionScript 3.0 may seem startlingly plentiful, but historically speaking, Flash has been through this sort of remodeling before. Developers encountered a similar paradigm shift when Macromedia Flash 5 introduced the language that, for clarity, was later renamed ActionScript 1.0. The original naming scheme didn’t include version numbering, and was therefore referred to simply as “ActionScript.” ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.