# SMISMEMBER

SMISMEMBER key 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 #

```
SADD myset "one"
SADD myset "one"
SMISMEMBER myset "one" "notamember"
```