Your good reason has a corollary, which happens to be another good reason to use the original code. This modifies the original array:
@array = 1 .. 10;
for my $var (@array) {
$var++;
print "$var\n";
}
print "@array\n";
But this does not:
@array = 1 .. 10;
for (@array) {
my $var = $_;
$var++;
print "$var\n";
}
print "@array\n";
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