Returns the value of a field in a hash.
HGET key field
Returns the value associated with field in the hash
stored at key.
One of the following:
Bulk string reply: The value associated with the field.
Nil reply: If the field is not present in the hash or key does not exist.
One of the following:
Bulk string reply: The value associated with the field.
Null reply: If the field is not present in the hash or key does not exist.
O(1)
@fast @hash @read
127.0.0.1:6379> HSET myhash field1 "foo"
(integer) 1
127.0.0.1:6379> HGET myhash field1
"foo"
127.0.0.1:6379> HGET myhash field2
(nil)HDEL, HEXISTS, HEXPIRE, HEXPIREAT, HEXPIRETIME, HGETALL, HGETEX, HINCRBY, HINCRBYFLOAT, HKEYS, HLEN, HMGET, HMSET, HPERSIST, HPEXPIRE, HPEXPIREAT, HPEXPIRETIME, HPTTL, HRANDFIELD, HSCAN, HSET, HSETEX, HSETNX, HSTRLEN, HTTL, HVALS.