SCARD
Attention
This page documents an earlier version. Go to the latest (v2.3) version.Synopsis
SCARD key
This command finds the cardinality of the set that is associated with the given key
. Cardinality is the number of elements in a set.
Return value
Returns the cardinality of the set.
Examples
You can do this as shown below.
$ SADD yuga_world "America"
1
$ SADD yuga_world "Asia"
1
$ SCARD yuga_world
2