HSTRLEN key field

Available since 3.2.0.

Time complexity: O(1)

Returns the string length of the value associated with field in the hash stored at key. If the key or the field do not exist, 0 is returned.

*Return value

Integer reply: the string length of the value associated with field, or zero when field is not present in the hash or key does not exist at all.

*Examples

redis> HMSET myhash f1 HelloWorld f2 99 f3 -256 

  1. "OK"

redis> HSTRLEN myhash f1 

  1. (integer) 10

redis> HSTRLEN myhash f2 

  1. (integer) 2

redis> HSTRLEN myhash f3 

  1. (integer) 4
redis>