SREM

Syntax
SREM key member [member ...]
Available since:
1.0.0
Time complexity:
O(N) where N is the number of members to be removed.
ACL categories:
@write, @set, @fast,

Remove the specified members from the set stored at key. Specified members that are not a member of this set are ignored. If key does not exist, it is treated as an empty set and this command returns 0.

An error is returned when the value stored at key is not a set.

Examples

redis> SADD myset "one"
(integer) 11
redis> SADD myset "two"
(integer) 6
redis> SADD myset "three"
1) (integer) 8
2) (integer) 9
3) (integer) 10
redis> SADD myset "one"
Cannot destructure property 'error' of 'replies[i]' as it is undefined.
redis> SADD myset "two"
Cannot destructure property 'error' of 'replies[i]' as it is undefined.
redis> SADD myset "three"
Cannot destructure property 'error' of 'replies[i]' as it is undefined.
redis> SREM myset "one"
Cannot destructure property 'error' of 'replies[i]' as it is undefined.
redis> SREM myset "four"
Cannot destructure property 'error' of 'replies[i]' as it is undefined.
redis> SMEMBERS myset
Cannot destructure property 'error' of 'replies[i]' as it is undefined.
redis>

RESP2 Reply

Integer reply: the number of members that were removed from the set, not including non existing members.

RESP3 Reply

Integer reply: Number of members that were removed from the set, not including non existing members.

History

  • Starting with Redis version 2.4.0: Accepts multiple member arguments.
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