The expression @quantity = [2,1]
assign two values into the array, it instead assigns an
anonymous array reference which contains two values into
the array. Did you mean @quantity = (2,1)
Here is some more code to play with:
my @wrong = [2,1];
my @right = (2,1);
my $ref = [2,1];
print 'right: ', Dumper \@right;
print 'right: ', Dumper $ref;
print 'wrong: ', Dumper \@wrong;
Update: this is a common
pitfall that probably all of us have stumbled on at least
once ... i sure have
(the triplet paradiddle with high-hat)
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