Roiy Zysman wrote:
>
> Hi All,
Hello,
> How can i get the hash reference when i use a function to sort that hash.
> e.g. i want to sort the hash according to is values
> I can do something like this
> sort {$hash{$a} cmp $hash{$b}} (keys %hash);
> but i want to sort it by using a call to a function , something like this
> foreach my $item ( sort $sort_func keys %$hash){
> how do i know what is the name of the hash inside the scope of the sort_func ???
>
> something like that maybe ???
> sub sort_hash_by_year_month(){
> $_{$a} <=> $_{$b};
> }
No, you are going to have to use the actual hash name (or a reference to
the hash) because the sub that sort uses only accepts the two values it
is comparing.
John
--
use Perl;
program
fulfillment
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