rredis: redisHLen – R documentation

Become an expert in R — Interactive courses, Cheat Sheets, certificates and more!

redisHLen

Redis hash length.

Description

Return the number of fields associated with the given key.

Usage

redisHLen(key)

Arguments

key

The key to look up.

Details

Returns the number of fields in the Redis hash associated with key. If the key is not found, or if the hash is empty, 0 is returned. If the key is associated with a value of type other than 'hash,' an error is thrown.

Value

The number of fields defined for the given key.

Author(s)

B. W. Lewis

References

http://redis.io/commands

Examples

## Not run: 
redisHMSet('A',list(x=1,y=2,z=3))
redisHLen('A')

## End(Not run)

rredis

"Redis" Key/Value Database Client

v1.7.0

Apache License (>= 2.0)

Authors