in reply to Dereferencing a Hash of Arrays

The reference operator here is a mistake, but it saves you a worse error:

my %alphabet = \(

You need to take references to both arrays in the list used to initialize the hash without taking references to the strings intended as keys.

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Re^2: Dereferencing a Hash of Arrays
by toro (Beadle) on Jun 14, 2011 at 07:30 UTC

    input:

    my @atags = qw( 1 2 3 4 );
my @btags = qw( 9 8 7 6 );

my %alphabet = (
     'a' => \@atags,
     'b' => \@btags,
             );


say for @{values %alphabet};

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    output:

    
Can't use string ("2") as an ARRAY ref while "strict refs" in use at
    ./concat.pl line 9 (#1)
    (F) Only hard references are allowed by "strict refs".  Symbolic
    references are disallowed.  See perlref.
    
Uncaught exception from user code:
    Can't use string ("2") as an ARRAY ref while "strict refs" in use 
+at ./concat.pl line 9.
 at ./concat.pl line 9

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[reply]
[d/l]
[select]

      From perldoc values:

      (In a scalar context, returns the number of values.)

      You'll see the error to which I alluded if you print the keys of the hash.

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[d/l]

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