LLEN

Syntax

LLEN key

Time complexity: O(1)

ACL categories: @read, @list, @fast

Returns the length of the list stored at key. If key does not exist, it is interpreted as an empty list and 0 is returned. An error is returned when the value stored at key is not a list.

Return

Integer reply: the length of the list at key.

Examples

dragonfly> LPUSH mylist "World"
(integer) 1
dragonfly> LPUSH mylist "Hello"
(integer) 2
dragonfly> LLEN mylist
(integer) 2