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redis commands sets scard
SCARD
Apply for Redis Developer Course
|
Redis Regular Inspection / Technical Support
|
Redis Enterprise Server
|
|---|
Return the number of members in a key
Usage: scard key.
You can also use SLEN.
Example
| Command> | sadd myset "member_1" "member_2" |
| Result> | 2 |
| Command> | sadd myset "member_3" "member_4" |
| Result> | 2 |
| Command> | scard myset |
| Result> | 4 |
Syntax
SCARD key
- Available since version 1.0.0.
- Time complexity is O(1).
| Related commands | SISMEMBER, LLEN, ZCARD |
| Clients for Java | Jedis, Lettuce, Redisson | Clients for C | Hiredis |
| << SLS | SCARD | SUNION >> |
|---|
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