Manfred Lotz wrote:
Hi there,
Hello,
I have a hash table where I want to do some action for each value in
the hash table.
Among other possibilities I could do like this:
map { some_action($_) } values %ht;
where let us say:
sub some_action {
...
return;
}
I like it because it is really short.
Questions:
1. Is there another perhaps better one liner to do it?
some_action( $_ ) for values %ht;
Or rewrite some_action() to use a list instead of a scalar and do:
some_action( values %ht );
2. Is it a problem when I don't take care about what map returns,
namely a list of 1's?
How do you know that map returns "a list of 1's" if you don't save what
map returns?
John
--
Any intelligent fool can make things bigger and
more complex... It takes a touch of genius -
and a lot of courage to move in the opposite
direction. -- Albert Einstein
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