rredis: redisSCard – R documentation

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redisSCard

Set cardinality

Description

Return the number of elements contained in the specified set.

Usage

redisSCard(set)

Arguments

set

A string set identifier.

Value

The function returns an integer corresponding to the number of elements in the set. Zero is returned if the set is empty or if the set does not exist.

Author(s)

B. W. Lewis

References

http://redis.io/commands

Examples

## Not run: 
redisConnect()
redisSAdd("set",5)
redisSCard("set")

## End(Not run)

rredis

"Redis" Key/Value Database Client

v1.7.0

Apache License (>= 2.0)

Authors