It's acutally pretty important that B also implements IA ... so an "instanceof" or "is" check should work as well as it should be possible to cast instaces A and B to IA.
Chris ________________________________________ Von: Erik de Bruin [e...@ixsoftware.nl] Gesendet: Donnerstag, 14. November 2013 17:58 An: dev@flex.apache.org Betreff: [FLEXJS] inheritance/interfaces Hi, Quick question (too lazy to build an AS project to check): If class B extends class A and class A implements interface IA, does class B also implement IA? In other words, in this scenario, does (B is IA) return true? I'm asking, because org.apache.flex.utils.Language.is() currently doesn't. If it should, that'll be my first thing... and I was sooo close to solving the CSS thing ;-) Thanks, EdB -- Ix Multimedia Software Jan Luykenstraat 27 3521 VB Utrecht T. 06-51952295 I. www.ixsoftware.nl