>> that is a poor explanation IMO.
hell, i was going to give this which dereferences the reference of a
reference DBI's selectall_arrayref returns so that i can later loop
through it again and again with different parameters:
my (@groups) = map {...@$_} @{ $dbh->selectall_arrayref("select distinct
org from groups") };
but, i didn't want to confuse the subject. just thought i'd post this
as an example of map's usefulness.
use Data::Dumper to figure out what you're getting returned and then
use map to put it in the format that you prefer.
though, Uri's explanation was much better than mine IMHO :)
but, as he said, whatever you can do with map, you can do with a
foreach loop and vise versa. whenever you find yourself writing a
foreach loop, just remember that you may want to consider map (i don't
know the benchmarks, i just use it for style at this point).
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