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SCARD

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

Returns the set cardinality (number of elements) of the set stored at key.

Return

Integer reply: the cardinality (number of elements) of the set, or 0 if key does not exist.

Examples

SADD myset "Hello"
SADD myset "World"
SCARD myset

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