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  1. or download this
    my @subs;
for(my $i=1;$i<=2;$i++){ print \$i."\n" }
print "----\n";
for my $i (1..2) { print \$i."\n" }
  2. or download this
    SCALAR(0x55a429b66a28)
SCALAR(0x55a429b66a28)
----
SCALAR(0x56399466d4d8)
SCALAR(0x5639946924a0)
  3. or download this
    my @subs;
my $i;
...
}
$i = 100;
$subs[3]->();