SCARD

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Synopsis

SCARD keyThis command finds the cardinality of the set that is associated with the given key. Cardinality is the number of elements in a set.

• If the key does not exist, 0 is returned.
• If the key is associated with a non-set value, an error is raised.

Return Value

Returns the cardinality of the set.

Examples

You can do this as shown below.

1. $ SADD yuga_world "America"

1. 1

1. $ SADD yuga_world "Asia"

1. 1

1. $ SCARD yuga_world

1. 2

See Also

sadd, sismember, smembers, srem