Finding length of array from refrence

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

Hello Perl'ers

I have an array of arrays I am trying to do this with;

foreach $AoAref (@AoA)
{
    print "Idx last Elmnt=$#{AoAref}\n";
}
[download]

but I'm always getting -1 as the length. How can I correctly find the length of an array within an array?

Thankyou in advance.

Comment on Finding length of array from refrence Download Code

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Re: Finding length of array from refrence by BrowserUk (Patriarch) on Mar 05, 2004 at 13:30 UTC
You need another $ charcter `print "Idx last Elmnt=$#{ $AoAref }\n"; # ^` [download] `$#{ ... }` says "Give me the highest index of the array who's reference is contained between the curlies". So you need to add the variable that holds the reference, in this case `$AoAref`. Examine what is said, not who speaks. "Efficiency is intelligent laziness." -David Dunham "Think for yourself!" - Abigail	[reply] [d/l] [select]
Re: Finding length of array from refrence by Limbic~Region (Chancellor) on Mar 05, 2004 at 13:30 UTC
Anonymous Monk, You probably mean one of the following two: `my $last = $#$AoAref; # index of last element # or my $count = @{ $AoAref }; # Number of elements in array` [download] Cheers - L~R	[reply] [d/l]
Re: Finding length of array from refrence by Happy-the-monk (Canon) on Mar 05, 2004 at 13:30 UTC
`$element_count = scalar @{ $AoAref }`	[reply]