SISMEMBER
Check whether a value is a member of a set.
SISMEMBER key memberComplexity
O(1)
Complexity and compatibility are read out of kevy's implementation, not copied from Redis's reference. Several genuinely differ.
Redis compatibility
Compatible
Behaves as Redis does.
See also
SADDSCARDSDIFFSDIFFSTORESINTERSINTERSTORESMEMBERSSPOPSRANDMEMBERSREMSSCANSUNIONSUNIONSTORE