what does $#AoA mean

[BlenderHead]

Hello World:

Have been reviewing this page on how to do complex data structures: http://perldoc.perl.org/perldsc.html

Am working on Arrays of Arrays, and in the print loop they ue the following structure in the conditional:

( 0 .. $#AoA )

I'm wondering what $#AoA means? Specifically, I'm wondering why they put a # sign between the $ and the namespace?

Any help much appreciated.

BH

[ikegami]

$#a is the current last index of the array @a. See perldata.

[Anonymous Monk]

It means last index of @test

my @test = 1 .. 4;
warn scalar @test;
warn $#test;
__END__
4 at - line 2.
3 at - line 3.