Rob Kinyon skribis 2005-10-25 8:37 (-0400):
> Did you post this specifically to anti-address the fear that P6 will
> be more line-noise-ish than P5? :-p
No. Leaving out $_ is one of the important features in *reducing* line
noise. We're all very used to seeing it, but to most people it is just
two more non-alphanumeric characters.
Reducing line noise isn't my goal, though. I feel that the implicit
defaulting to $_ makes Perl a more natural and elegant language, and
would like this principle being extended to these operators.
For comparison, here is the same code snippet again. First with, and
then without explicit $_.
With:
given ($subject) -> $_ {
$_ ~~ s/foo/bar/;
$_++;
$_ x= 2;
$_ ~= "!";
}
Without:
given ($subject) {
s/foo/bar/;
++;
x= 2;
~= "!";
}
I think the latter is more elegant, without reducing legability or
maintainability. I also think that the code is immediately obvious, even
to people coming from Perl 5, who never read this thread.
Juerd
--
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