Well, thanks. But without "sort" it works the same way.
I should have been more explicit. It's "keys" that creates the new array, not the sort.
If you want to process all of the keys and values in a hash without creating a new array to hold the hash keys, look into "each".
while ( ($key, $value) = each %h ) {
...
This doesn't create an additional array. Note, though, that it's unsafe to manipulate the hash while you're iterating over it. The proviso in the docs reads:
If you add or delete elements of a hash while you’re
iterating over it, you may get entries skipped or duplicated,
so don’t. Exception: It is always safe to delete the item most
recently returned by "each()".
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