HEXISTS

Returns if field is an existing field in the hash stored at key.

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One of the following:

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

Examples

127.0.0.1:6379> HSET myhash field1 "foo"
(integer) 1
127.0.0.1:6379> HEXISTS myhash field1
(integer) 1
127.0.0.1:6379> HEXISTS myhash field2
(integer) 0