Hi all,
Please tell me how to convert the elements of a hash to uppercase, if I can
access that hash only by reference.
For example, I have something like:
my $ref = { 'a' => 'aaa', 'b' => 'bbb', 'c' => 'ccc' };
And I want to make 'a' to be 'A', 'b' to be 'B' and so on, but the values of
the hash need to remain the same.
I have tried using map() but without success.
Thank you for your help.
Teddy
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