RPOP
Syntax
RPOP key [count]
Time complexity: O(N) where N is the number of elements returned
Removes and returns the last elements of the list stored at key
.
By default, the command pops a single element from the end of the list. When provided with the optional count
argument, the reply will consist of up to count
elements, depending on the list’s length.
Return
When called without the count
argument:
Bulk string reply: the value of the last element, or nil
when key
does not exist.
When called with the count
argument:
Array reply: list of popped elements, or nil
when key
does not exist.
Examples
dragonfly> RPUSH mylist "one" "two" "three" "four" "five"
(integer) 5
dragonfly> RPOP mylist
"five"
dragonfly> RPOP mylist 2
1) "four"
2) "three"
dragonfly> LRANGE mylist 0 -1
1) "one"
2) "two"