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HLEN

HLEN key

Available since 2.0.0.

Time complexity: O(1)

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

Return value

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

Examples

redis> HSET myhash field1 "Hello" (integer) 1 redis> HSET myhash field2 "World" (integer) 1 redis> HLEN myhash (integer) 2

© 2009–2020 Salvatore Sanfilippo
Licensed under the Creative Commons Attribution-ShareAlike License 4.0.
https://redis.io/commands/hlen