HLEN

Syntax
HLEN key
Available since:
Redis Open Source 2.0.0
Time complexity:
O(1)
ACL categories:
@read, @hash, @fast,
Compatibility:
Redis Enterprise and Redis Cloud compatibility

Returns the number of fields contained in the hash stored at key.

Examples

Redis Enterprise and Redis Cloud compatibility

Redis
Enterprise		 Redis
Cloud		 Notes
✅ Standard
✅ Active-Active		 ✅ Standard
✅ Active-Active

Return information

Integer reply: the number of fields in the hash, or 0 when the key does not exist.