Using Dot operator on object to show function

Hi guys,

i am learning AS 3.0 at present using FlashDevelop which is really nice to use. I've created to arrays using the following code

var myArray:Array = [1, 2, 3]
var youArray = new Array();

now, everytime i do the following myArray. and the methods appear, i can clearly see them. However, when i do it with the latter ie youArray. nothing appears, not even one method.

Can somebody explain why it does not show the methods when i do the latter method.