Someone on #freenode::perl just asked if $array[2..4] would return a list of elements. Their mistake was the '$' instead of a '@', but I opened a can of worms by saying that the code as shown would return $array[0] or $array[1], but I couldn't know which.

Then I said that $array[2..4] behaves differently from ($x,$y) = (2,4); $array[$x..$y]. Just for kicks, I post this here. Who knows why the two behave differently?

# given:
my @array = qw( A B C );
my ($x, $y, $z) = (0, 1, 2);

# explain:
$array[0..1]
$array[0..2]
$array[1..2]

$array[$x..$y]
$array[$x..$z]
$array[$y..$z]
$array[$z..$x]
[download]

Hint here: