hstrlen

HSTRLEN

HSTRLEN key field

Available since 3.2.0.

Time complexity: O(1)

Returns the string length of the value associated with field in the hash stored at key. If the key or the field do not exist, 0 is returned.

Return value

Integer reply: the string length of the value associated with field, or zero when field is not present in the hash or key does not exist at all.

Examples

redis> HMSET myhash f1 HelloWorld f2 99 f3 -256 "OK" redis> 登录查看完整内容