Something seems counterintuitive about using $# with array refs:

my @array = (1,2,3,4,5,6,7);
print "scalar co
print "array last index - $#array\n";

my $arrayref = [1,2,3,4,5,6];

print "arrayref last index - $#$arrayref\n";

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Why does this work? The syntax looks wrong to me?

cLive ;-)

update - looking at the array in scalar context makes it easier to see, but it still feels weird to me: 

print "array scalar context - ".@array."\n";
print "arrayref scalar context - ".@$arrayref."\n";

[download]

In reply to last index of array ref... by cLive ;-)

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