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SISMEMBER

SISMEMBER
Syntax
SISMEMBER key member
Available since:
1.0.0
Time complexity:
O(1)
ACL categories:
@read, @set, @fast,

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

Return

Integer reply, specifically:

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

Examples

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

© 2006–2022 Salvatore Sanfilippo
Licensed under the Creative Commons Attribution-ShareAlike License 4.0.
https://redis.io/commands/sismember/