How do I verify if all instances was destroyed?

Self-explained title =P

I just know when any instance of the object is destroyed but not all.

check if sprite.count = 0?

check if sprite.count = 0?

I can't use it because I don't know how many instances of this object will have. I mean, I know but there will be so many layouts with different counts that wouldn't be good idea.

Edit: Nevermind. I though I'd have to put the numbers everytime. I've tested it and works. Thanks!

cool