- Usage:
-
RPUSHX key element [ element ... ]
- Complexity:
- O(1) for each element added, so O(N) to add N elements when the command is called with multiple arguments.
- Since:
- 2.2.0
Inserts specified values at the tail of the list stored at key
, only if key
already exists and holds a list.
In contrary to RPUSH
, no operation will be performed when key
does not yet
exist.
Examples
127.0.0.1:6379> RPUSH mylist "Hello"
(integer) 1
127.0.0.1:6379> RPUSHX mylist "World"
(integer) 2
127.0.0.1:6379> RPUSHX myotherlist "World"
(integer) 0
127.0.0.1:6379> LRANGE mylist 0 -1
1) "Hello"
2) "World"
127.0.0.1:6379> LRANGE myotherlist 0 -1
(empty array)
History
Version | Change |
---|---|
4.0.0 | Accepts multiple |