Try using haXe for your JS code. The syntax is extremely close to AS3 and you'll get the static types and classes back, as well as lots of other nifty stuff. I

Try using haXe for your JS code. The syntax is extremely close to AS3 and you'll get the static types and classes back, as well as lots of other nifty stuff. IDE support is still kind of lightweight, but there are several options out there: http://haxe.org/com/ide http://haxe.org/com/ide I use Geany, because I only really need context-sensitivity, highlighting, and search+replace.