Commandsrpop
RPOP
Apply for Redis Developer Course
|
Redis Regular Inspection / Technical Support
|
Redis Enterprise Server
|
|---|
Pop data from the right of the list
Pops data from the right of the list. It is removed from the list.
When using a queue data structure, use LPUSH and RPOP.
Example
| Command> | lpush mylist value1 value2 value3 value4 |
| Result> | 4 |
| Command> | lrange mylist 0 -1 |
| Result> | 0) value4 1) value3 2) value2 3) value1 |
| Command> | rpop mylist |
| Result> | value1 value1, the first value inserted, is returned |
| Command> | lrange mylist 0 -1 |
| Result> | 0) value4 1) value3 2) value2 |
| Command> | rpop mylist |
| Result> | value2 |
Popping multiple values: COUNT option
Use the COUNT option to pop multiple values.
The COUNT option is available since version 6.2.
Example: Count
| Command> | lpush mylist value1 value2 value3 value4 |
| Result> | 4 |
| Command> | rpop mylist 3 |
| Result> |
1) value1 2) value2 3) value3 |
Syntax
RPOP key [count]
- Available since version 1.0.0.
- Time complexity is O(N). N is the number of returned values.
- The COUNT option was added in version 6.2.
| Related commands | LPOP, LPUSH, RPUSH |
| Clients for Java | Jedis, Lettuce, Redisson | Clients for C | Hiredis |
| << LPUSHS | RPOP | LPOP >> |
|---|
Email
답글이 올라오면 이메일로 알려드리겠습니다.
