HSTRLEN

Syntax
HSTRLEN key field
Available since:
3.2.0
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.

Examples

redis> HSET myhash f1 HelloWorld f2 99 f3 -256
"id=423520 addr=127.0.0.1:36722 laddr=127.0.0.1:6379 fd=12 name= age=276040 idle=0 flags=N db=0 sub=0 psub=0 ssub=0 multi=-1 watch=0 qbuf=26 qbuf-free=20448 argv-mem=10 multi-mem=0 rbs=1024 rbp=0 obl=0 oll=0 omem=0 tot-mem=22426 events=r cmd=client|info user=interwebz redir=-1 resp=2 lib-name= lib-ver=
"
redis> HSET myhash f1 HelloWorld f2 99 f3 -256
Cannot destructure property 'error' of 'replies[i]' as it is undefined.
redis> HSTRLEN myhash f1
Cannot destructure property 'error' of 'replies[i]' as it is undefined.
redis> HSTRLEN myhash f2
Cannot destructure property 'error' of 'replies[i]' as it is undefined.
redis> HSTRLEN myhash f3
Cannot destructure property 'error' of 'replies[i]' as it is undefined.
redis>

RESP2/RESP3 Reply

Integer reply: the string length of the value associated with the field, or zero when the field isn't present in the hash or the key doesn't exist at all.
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