- Usage:
-
BF.CARD key
- Complexity:
- O(1)
- Module:
- valkey-bloom
- Since module version:
- 1.0.0
Returns the cardinality of a bloom filter which is the number of items that have been successfully added to it.
Examples
127.0.0.1:6379> BF.ADD key val
(integer) 1
127.0.0.1:6379> BF.CARD key
(integer) 1
127.0.0.1:6379> BF.CARD nonexistentkey
(integer) 0
RESP2/RESP3 Reply
Integer reply: The number of items successfully added to the bloom filter, or 0 if the key does not exist