SMISMEMBER

SMISMEMBER key member [member ...]

Available since:

6.2.0

Time complexity:

O(N) where N is the number of elements being checked for membership

ACL categories:

@read, @set, @fast,

Returns whether each member is a member of the set stored at key.

For every member, 1 is returned if the value is a member of the set, or 0 if the element is not a member of the set or if key does not exist.

Examples

redis> SADD myset "one"
(integer) 2
redis> SADD myset "one"
1) 1) "Palermo"
   2) "190.4424"
2) 1) "Catania"
   2) "56.4413"
redis> SMISMEMBER myset "one" "notamember"
1) 1) "Palermo"
   2) 1) "13.36138933897018433"
      2) "38.11555639549629859"
2) 1) "Catania"
   2) 1) "15.08726745843887329"
      2) "37.50266842333162032"

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