Oops. I apparently did not make myself clear.
I rarely use map or grep in a void context. When I said that I see map and grep and operations on a list. I mean it in much the same way that + is an operation on a number.
When I need to transform a list into a new list, I tend to think of map. To me, the foreach approach focuses more on the individual elements of a list than on the list as a whole.
That being said, I will break my own preferred approach any time it makes the code clearer.<grin/>
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