[mx04] strange problem with for(i in array)

[athletics]

I wasted several hours yesterday while trying to change the depths of a couple of MovieClips stored in an array:

		for(i in bug)
		{
			bug[i].swapDepths(4000+i);
			trace(i + " depth " + bug[i].getDepth());
		}

As I hadn't used swapDepths() before, I assumed I was doing something wrong with it. But nothing seemed to work - their original depths remained unchanged. Then, just in case, I changed to a normal for loop:

		for(i=0; i<no_bugs; i++)
		{
			bug[i].swapDepths(4000+i);
			trace(i + " depth " + bug[i].getDepth());
		}

And suddenly everything works like expected... Can someone please explain this?

[silentweed]

welcome to FK

In the second loop i is a number so when you do 4000+i it makes sense...

In the first loop i is a string so you are adding a string to 4000, which does'nt give you a valid depth...

[athletics]

welcome to FK

In the second loop i is a number so when you do 4000+i it makes sense...

In the first loop i is a string so you are adding a string to 4000, which does'nt give you a valid depth...

Aha, that makes sense - the for-in loop is really meant to be used for MovieClip properties. Thanks!