sdbm.delete(key) รข value or nil
sdbm.delete(key) { |key, value| ... }
sdbm.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.
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