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HSTRLEN

Returns the string length (in bytes) of the value associated with the field in the hash stored at key.

Syntax​

HSTRLEN key field

Details​

  • Available since: 3.2.0
  • Time complexity: O(1)
  • ACL categories: @read, @hash, @fast

Example​

Assume we have a hash called myhash with a field "field1" with value "Hello, world!":

HSET myhash field1 "Hello, world!"

Now, let's retrieve the string length of the value associated with "field1" in myhash:

HSTRLEN myhash field1

This will output:

(integer) 13

RESP2/RESP3 Reply​

Integer reply: the string length of the value associated with the field, or 0 if the field does not exist or the key does not exist.