Hash - Key zu Wert ...

[alligator]

Hallo,

ich möchte den Key zu einen Wert herausfinden, geht das auch einfacher als so :

How do I look up a hash element by value?

Create a reverse hash:

%by_value = reverse %by_key;
    $key = $by_value{$value};

That's not particularly efficient.  It would be more space-efficient
to use:

while (($key, $value) = each %by_key) {
        $by_value{$value} = $key;
    }

If your hash could have repeated values, the methods above will only
find one of the associated keys.   This may or may not worry you.

Ok danke schön ...

GRuß
alligator