LLEN

LLEN key

Available since

1.0.0

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.

Examples #

LPUSH mylist "World"
LPUSH mylist "Hello"
LLEN mylist