Synopsis

HLEN key
This command fetches the number of fields in the hash that is associated with the given key.

  • If the `key` does not exist, 0 is returned.
  • If the `key` is associated with non-hash data, an error is raised.
  • Return value

    Returns number of fields in the specified hash.

    Examples

    $ HSET yugahash area1 "Africa"
    
    1
    
    $ HSET yugahash area2 "America"
    
    1
    
    $ HLEN yugahash
    
    2
    

    See also

    hdel, hexists, hget, hgetall, hkeys, hmget, hmset, hset, hincrby, hstrlen, hvals