sdbm.delete(key) â value or nilsdbm.delete(key) { |key, value| ... }
Instance Public methods
Deletes the key-value pair corresponding to the given key. If
the key exists, the deleted value will be returned, otherwise
nil.
If a block is provided, the deleted key and value
will be passed to the block as arguments. If the key does not
exist in the database, the value will be nil.