Question

Can anyone tell me the applicable differences between an ArrayCollection and a Vector in flex? I’m unsure if I should be using one over the other. I saw that Vector is type safe and that makes me feel better, but are there disadvantages?

public var ac:ArrayCollection = new ArrayCollection();

versus

public var vec:Vector.<String> = new Vector.<String>();

Thanks.

Answer 1

Additionally, Vector is about 3 times faster than Array, which is about 18 times faster than ArrayCollection.

rule of thumb is

• if you don’t need data binding / events notifications, use Array

AND

• if all elements in the array are of the same type (and you want strong typing), use Vector.