SISMEMBER

Syntax
SISMEMBER key member
Available since:
Redis Open Source 1.0.0
Time complexity:
O(1)
ACL categories:
@read, @set, @fast,
Compatibility:
Redis Enterprise and Redis Cloud compatibility

Returns if member is a member of the set stored at key.

Examples

SADD myset "one" SISMEMBER myset "one" SISMEMBER myset "two"

Redis Enterprise and Redis Cloud compatibility

Redis
Enterprise		 Redis
Cloud		 Notes
✅ Standard
✅ Active-Active		 ✅ Standard
✅ Active-Active

Return information

One of the following:

  • Integer reply: 0 if the element is not a member of the set, or when the key does not exist.
  • Integer reply: 1 if the element is a member of the set.
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