No push necessary: 

my @times_two = map { $_ * 2 } (1 .. 12);

[download]
That doesn't mean you can't use a push, just that you don't have to to make one list: 

my @duplicate;
my @times_two = map { my $val = $_ * 2; push @duplicate, $_; $_ } (1 .
+. 12);

[download]

Does that make it clearer?

In reply to Re: Re: Re: Re: foreach/map equivalency by chromatic
in thread foreach/map equivalency by rob_au

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