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HSTRLEN

Last updated 
HSTRLEN key field
Group
Hash
Complexity
O(1)
Arity
3 (exactly, counting the command name)
Flags
read-only, fast
Keys
first 1, last 1, step 1
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HSTRLEN returns the length, in bytes, of the value stored in field of the hash at key.

Return value

Section titled “Return value”
Case RESP2 RESP3
Field exists Integer: the value’s length in bytes Same
Field or key does not exist Integer 0 Same

HSTRLEN replies with a WRONGTYPE error if key holds a value that is not a hash.

Examples

Section titled “Examples”
127.0.0.1:6379> HSET user:1 name "Ada" bio "Mathematician"
(integer) 2
127.0.0.1:6379> HSTRLEN user:1 bio
(integer) 13
127.0.0.1:6379> HSTRLEN user:1 email
(integer) 0

Compatibility

Section titled “Compatibility”

Same as Redis 7.4 and Valkey 8.

See also

Section titled “See also”

HGET, HLEN, STRLEN