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SCARD

Syntax
SCARD key
Available since:
Redis Open Source 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.

Examples

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

Return information

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