LLEN

Syntax
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

Give these commands a try in the interactive console:

redis> LPUSH mylist "World"
(integer) 11
redis> LPUSH mylist "Hello"
(integer) 6
redis> LLEN mylist
1) (integer) 8
2) (integer) 9
3) (integer) 10
redis>

RESP2/RESP3 Reply

Integer reply: the length of the list.
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