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HEXISTS

Returns if a field exists in a hash stored at key.

Syntax​

HEXISTS key field

Details​

  • Available since: 2.0.0
  • Time complexity: O(1)
  • ACL categories: @read, @hash, @fast

Example​

Assume we have a hash called myhash with fields "field1" and "field2":

HSET myhash field1 "value1"

Now, let's check if "field1" and "field2" exist in myhash:

HEXISTS myhash field1
HEXISTS myhash field2

This will output:

(integer) 1
(integer) 0

RESP2/RESP3 Reply​

Integer reply: 1 if the hash contains the field, 0 if the hash does not contain the field or the key does not exist.