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HEXISTS key field

相关命令

• HDEL
• HEXISTS
• HGET
• HGETALL
• HINCRBY
• HINCRBYFLOAT
• HKEYS
• HLEN
• HMGET
• HMSET
• HSCAN
• HSET
• HSETNX
• HVALS

Available since 2.0.0.

时间复杂度： O(1)

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

返回值

Integer reply, specifically:

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

例子

redis> HSET myhash field1 "foo"

(integer) 1

redis> HEXISTS myhash field1

(integer) 1

redis> HEXISTS myhash field2

(integer) 0

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