hstrlen
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.
Examples
127.0.0.1:6379> HSET myhash f1 HelloWorld f2 99 f3 -256
(integer) 3
127.0.0.1:6379> HSTRLEN myhash f1
(integer) 10
127.0.0.1:6379> HSTRLEN myhash f2
(integer) 2
127.0.0.1:6379> HSTRLEN myhash f3
(integer) 4
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