Further to choroba's reply: For even more complete completeness, if you're dealing with array references:
for my $element (@$arrayref) {
print $element, "\n";
}
for my $i (0 .. $#$arrayref) {
print "$i: $arrayref->[$i]\n";
}
Update: Digioso: I quite agree with your preference for using explicitly named variables rather than default names (or none at all) in the interests of readability and maintainability. I disagree that the C-style for-loop serves these interests, quite apart from the lurking demon Offbyone.
Give a man a fish: <%-{-{-{-<
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