Caution: if you have any data that is repetitive, you will lose information
during the flipping process.
Subject: Re: Sorting a hash by value, and displaying the key
--- David Michael <[EMAIL PROTECTED]> wrote:
> Hello,
> I have a hash that needs to be displayed in a certain order. I
> tried
>
> foreach $key (sort (keys %HASH)) {
> print $key;
> }
>
> that sorts alphabetically. I need it in the order it was
> inserted, so I made the value a number that increased for each key. I
> need to sort by the value, but display the key. Any ideas ?
Try flipping the hash.
my %flipped;
@flipped{values %HASH} = keys %HASH;
That makes the keys of %HASH the values of %flipped, with the matching
values of %HASH being the keys to which they are assigned.
Now just do it the easy way.
for my $key (sort keys %flipped) {
print $flipped{$key};
}
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