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HLEN

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

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

Examples

HSET myhash field1 "Hello" HSET myhash field2 "World" HLEN myhash

Return information

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