Redis
Redis
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hexists

HEXISTS

HEXISTS key field

Available since 2.0.0.

Time complexity: O(1)

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

Return value

Integer reply, specifically:

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

Examples

redis> HSET myhash field1 "foo" (integer) 1 redis> HEXISTS myhash field1 (integer) 1 登录查看完整内容