On 2014-02-25 04:45, Paul Makepeace wrote:
On Mon, Feb 24, 2014 at 2:04 PM, Steve Mynott <steve.myn...@gmail.com> wrote:
http://perltricks.com/article/72/2014/2/24/Perl-levels-up-with-native-subroutine-signatures
Finally. But don't believe the python/perl comparison troll, as
python, for once, actually outguns perl on a character chomping basis,
sub pairwise_sum ($arg1, $arg2) {
return map { $arg1->[$_] + $arg2->[$_] } 0 .. $#$arg1;
}
def pairwise_sum(list1, list2):
return [i + j for i, j in zip(list1, list2)]
Some Perl alternatives:
sub pairwise_sum ($list1, $list2) {
[pairwise {$a + $b} @$list1, @$list2];
}
sub pairwise_sum (\@\@) {
pairwise {$a + $b} @{$_[0]}, @{$_[1]};
}
--
Ruud
