Hi Noah,
On Tuesday 14 September 2010 17:19:17 Noah wrote:
> Hi there,
>
> what is the easiest way to change all the keys that are now placed as
> elements in an array to lowercase?
>
> my @sitenamekeys = sort keys (%sites);
> print "site @sitenamekeys\n";
> exit 0;
To change @sitenamekeys (which I'll call @site_name_keys for clarity) in
place, say:
[code]
foreach my $key (@site_name_keys)
{
$key = lc($key);
}
[/code]
This can be shortened into:
[code]
$_ = lc($_) foreach (@site_name_keys);
[/code]
If you want to return a new array, you can use map:
[code]
my @lowercased_keys = (map { lc($_) } @site_name_keys);
[/code]
Regards,
Shlomi Fish
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