Juerd writes:
> Luke Palmer skribis 2005-01-28 9:31 (-0700):
> > > And can $_ be used instead of $^n?
> > Of course it can. You know that.
>
> I do?
>
> Can't say I understand well when a topic is implicitly defined and when
> not. It's obvious for for-loops and given, but everything else is
> blurry to me.
Okay, I'll explain then. If you use $_ inside a closure, then it is
assumed to mean an argument to that closure. If the closure isn't given
an argument (or the block is declared to have zero arguments at compile
time) then $_ defaults to the outer lexical $_, which fixes this
problem:
for @stuff {
if something() {
print; # prints the argument to if's block
}
}
I don't think it's the cleanest solution, but it works.
Luke
