Quick questions about unit groups

[kingkwong]

When I use(set group = units within range)
This creates a unit group that needs to be cleaned up or else it will leak

What happens when I add a unit to a group, does this create a new group?
What happens when I delete the group?
Can I still add units to it after I have destroyed it?
Is destroying a group the same as emptying a group?

 

[IcemanBo]

What happens when I add a unit to a group, does this create a new group?

No, nothing new is created. Adding/removing/using a group won't leak. Only creating can.

What happens when I delete the group? Can I still add units to it after I have destroyed it? Is destroying a group the same as emptying a group?

Destroy -> the group does not exist anymore -> you can't add/remove/use the group anymore.
Clean -> the group does still exist -> you can use it if neeeded without having to re-create it.

 

[kingkwong]

Thanks for that.

I have many triggers that just add/remove units to a unit group
Loop every 0.0X seconds until no unit are in group

Is this effective/ alright to do. I just add/remove units but I don't create any or destroy them.

 

[IcemanBo]

You somehow answered it yourself, but you seem to ask for a "okay".
But yes, sure, it's a good way to go if it you can handle it all without
creating/destroying something and also don't have a huge amoutn of extra code.

Creating something is always something "heavy" compared to other things like "add/remove" a unit.