I came across a syntax for creating a pre-populated Vector object in ActionScript that I hadn't seen before. It's all documented in the ActionScript reference, but I thought i'd make a note of it nevertheless.
Typically you create a new Vector object like this.
var v:Vector.<T> = new Vector.<T>();
Where you want to pre-populate the Vector at the time you create it, you can use this alternate syntax
var v:Vector.<String> = new <String>["item1","item2",];
Note the square brackets. And that trailing comma is optional.
Just a neat bit of syntax that saves a bit of verbosity when setting up Vector objects.