Hi Monks!

Trying here to verify if an array ref is empty, but this error: 
Can't use an undefined value as an ARRAY reference

[download]
Trying like this:

Sample 1:
It works if the array ref has elements 
 my $data = data();
 my $count = scalar(@$data); #  $#$data;
print $count;

[download]
Sample 2:
It does not work if the array ref returns nothings
 my $data = data();
 my $count = scalar(@$data); #  $#$data;
print $count;

[download]
Sample 3:
Works but gives me count of 1, since "undef" is been counted I would like to see 0. 
my @count = $data;
my $count = @count;
print $count;

[download]

Thanks for helping!

In reply to Count elements in array ref by Anonymous Monk

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