Interview Questions for ActionScript 3 / Flex Programmer [closed]

Question

What could be good question to decide if candidate has strong or atleast fair knowledge working with Flex and ActionScript.

Answer 1

• Basic understanding of OO concepts
• Event handling (bubbling, difference between stop propagation and stop immediate propagation etc)
• Why stage is null when accessed from my custom movie clip's constructor?
  • addChildAt and swapChildren - what do they do?
• Data binding concepts
• Accessing media/data from a different domain than the originating one:
  • What does crossdomain.xml do?
• Item renderers and the implications of the fact that they're reused:
  • Why should you always use overriden set data to customize an item renderer?
  • Ever heard of outerDocument?
• How do you implement an ActionScript interface in mxml
• Ask him to rewrite a not-so-complex-mxml component in pure ActionScript. You may or may not have to do this in a real project, but someone who knows how to do this will have a good understanding about the internals of Flex. If he says you can't do this with ActionScript, he has been mostly copy pasting from tutorials.
• Basic e4x

Answer 2

I like to ask the interviewee to describe the component lifecycle. You can usually judge how knowledgeable they are by how in-depth they go.