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HRANDFIELD

Returns a random field from the hash stored at key.

Syntax​

HRANDFIELD key [count]

Details​

  • Available since: 6.2.0
  • Time complexity: O(N) where N is the number of fields in the hash.
  • ACL categories: @read, @hash, @fast

Example​

Assume we have a hash called myhash with fields "field1", "field2", and "field3" with corresponding values:

HSET myhash field1 "value1"
HSET myhash field2 "value2"
HSET myhash field3 "value3"

Now, let's retrieve a random field from myhash:

HRANDFIELD myhash

This will output:

"field1"

Now, let's retrieve 2 random fields from myhash:

HRANDFIELD myhash 2

This might output something like:

1) "field3"
2) "field2"

RESP2/RESP3 Reply​

Bulk string reply: the random field(s) from the hash, or nil if the hash is empty.