Just kidding, actually I worship $_, but today, I seek wisdom for a conondrum which rattles my faith in this most holy, virtuous, and altogether nifty variable. If $_ is a global variable, how does $_ become quasi-lexically scoped:
my @l = (1,2,3,4);
my @m = qw(a b c d e f g h);
for (@l) {
for (@m) { print " $_ " }
print " : $_\n";
}
outputs
a b c d e f g h : 1
a b c d e f g h : 2
a b c d e f g h : 3
a b c d e f g h : 4
How does $_ get its value reset from the last 'h' value of the inner loop back to the numeric values of the outer loop? I was under the impression that $_ (namely, $::_) was a global variable. So what's story? Thanks for enlightening me...
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