in reply to How to correctly use a symbolic reference to automatically generate hash names?

No. Have one hasharray of lists of lists hashes (NOT multiple hashes), and do, e.g.:
my @wow;

...

push @{$wow[$i]{$row[$i]}}, "sth";

[download]
  • Comment on Re: How to correctly use a symbolic reference to automatically generate hash names?
  • Download Code

Replies are listed 'Best First'.
Re^2: How to correctly use a symbolic reference to automatically generate hash names?
by lightoverhead (Pilgrim) on Mar 04, 2014 at 21:36 UTC

    Thank you for your reply.

    However, what I have is a set of hashes such as %wow0, %wow1,%wow2, %wow3, .... That's why I want to use a loop to handle these hashes and I need an automatic way to refer to these hashes and to update info on these hashes.

[reply]

      Why on earth would you have %wow1, %wow2, and %wow3, instead of %{$wow[1]}, %{$wow[2]}, and %{$wow[3]}? In other words, instead of: 

      %wow1 = ( key => value, key => value );
%wow2 = ( key => value, key => value );

      [download]

      You could have...

      @wow = (
  { key => value, key => value },
  { key => value, key => value },
);

      [download]

      Which is an array of hashes, instead of a bunch of hashes loosely related by naming convention.

      I see no advantage to polluting your package global namespace with variable names that are tricky to manipulate when you could just create a single AoH structure.


      Dave

[reply]
[d/l]
[select]
      I am suggesting to not have a set of hashes named %wow0, %wow1, etc., and to instead do as I have suggested.
[reply]

        you seemed suggesting to put the names of the hashes in an array then refer them the way you posted.

        is there a way to refer to hashes as I original wanted?

[reply]

In Section Seekers of Perl Wisdom