HLEN key
Available since: 2.0.0
Time complexity: O(1)
ACL categories:
@read
@hash
@fast
Returns the number of fields contained in the hash stored at key.
Return
Integer reply: number of fields in the hash, or 0 when key does not exist.
Available since: 2.0.0
Time complexity: O(1)
ACL categories:
@read
@hash
@fast
Returns the number of fields contained in the hash stored at key.
Integer reply: number of fields in the hash, or 0 when key does not exist.