RPUSHX

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 element arguments.