HSTRLEN

Syntax

1. HSTRLEN key field

Time complexity: O(1)

ACL categories: @read, @hash, @fast

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

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

1. dragonfly> HMSET myhash f1 HelloWorld f2 99 f3 -256
2. "OK"
3. dragonfly> HSTRLEN myhash f1
4. (integer) 10
5. dragonfly> HSTRLEN myhash f2
6. (integer) 2
7. dragonfly> HSTRLEN myhash f3
8. (integer) 4