Hey, Flex is nothing more than a framework built using AS3, and AS3 only exists in the flash player, so they are the exact same AS3. An Flex (mxml) component, is just a set of AS3 classes, that you can modify, update, extend, or change in any way. Flex simply provides a high-level and convenient way to implement Action Script.
To learn, I'd start with a simple mxml app, then as you progress, start adding more complexity and customizations. You will quickly find out that you will have to drop down to the lower-level AS3 code, by creating your own classes, or extending existing flex components. At the end of the day, to be a good Flex developer, you have to also be a good AS3 developer, so it's in your interest to learn both. Good luck! Baz On Sat, Nov 21, 2009 at 5:27 PM, fred44455 <[email protected]> wrote: > > > I am new to Flex however I have both platforms , Flex 3 and Flash CS4. My > question is : When you code AS3 using Flex3 is it totally similar than Flash > AS3? Do they use different packages & Classes? Is it better to start with > Flex 3 first then doing Flash aftwards?or can I learn both platforms on the > same time?I want to become a Flex Developer but i noticed that the job > postings often require Flex/Flash knowledge. Thanks for your time. > > >
