Redis

HMGET key field [field ...]

Returns the values associated with the specified fields in the hash stored at key.

For every field that does not exist in the hash, a nil value is returned. Because a non-existing keys are treated as empty hashes, running HMGET against a non-existing key will return a list of nil values.

Return value

Array reply: list of values associated with the given fields, in the same order as they are requested.

redis>  HSET myhash field1 "Hello"
(integer) 1
redis>  HSET myhash field2 "World"
(integer) 1
redis>  HMGET myhash field1 field2 nofield
1) "Hello"
2) "World"
3) (nil)
redis> 
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