hcchien raised the following question on #perl6[1]:
If I want to loop through a nine-element array three elements at a time, I do
my @a = 1..9;
for @a -> $x, $y, $z { say $x }
But what if I don't care about the elements 1,4,7? Would the following
be a sane syntax?
my @a = 1..9;
for @a -> undef, $x, $y { say $x }
FWIW, to me it looks fairly intuitive. undef here means "don't alias
the element, just throw it away"... gaal joked about using _ instead
of undef. :)
If the appropriate authority (p6l or @larry) likes this idea, I can
add a few tests to that end in the pugs tree.
[1]
<http://colabti.de/irclogger/irclogger_log/perl6?date=2005-09-22,Thu&sel=182#l318>
