redis HEXISTS command

exist

UK[ɪgˈzɪst] US[ɪɡˈzɪst]

vi.Exist; survive; live; continue to exist

Third person singular: exists Present participle: existing Past tense: existed Past participle: existed

redis HEXISTS command syntax

Function:Check whether the given domain field exists in the hash table key.

Syntax:HEXISTS key field

Available versions:>= 2.0.0

Time complexity :O(1)

Return:If the hash table contains the given field, return 1. If the hash table does not contain the given field, or key does not exist, 0 is returned.

redis HEXISTS command example

redis> HEXISTS phone myphone (integer) 0 redis> HSET phone myphone nokia-1110 (integer) 1 redis> HEXISTS phone myphone (integer) 1