lmpop Command

Syntax: lmpop time numkey left/right count

Explanation: It pops one or more elements from first non-empty list. Its similar to lpop, rpop, blpop, brpop like cmds. It will return ‘nill’ when no element can be poped. First it popped elements of first list till it get empty, then it popped 2nd list.

Example: lmpop 2 Web App LEFT 3

Complete Guide to Redis Lists

When it comes to data structures, Redis offers a wide range of options to efficiently manage and manipulate your data and one of them is list. A list is an ordered collection of values associated with a unique index. Unlike arrays, Redis lists are not limited to a fixed size and can expand or shrink on per need basis. In real, it works like linked lists under the hood, which means adding or removing elements from the beginning or the end of the list is an efficient operation here having a time complexity of O(1) that is constant.

Important Topics for the Redis Lists

  • Redis Lists Commands
    • 1. keys Command
    • 2. lpush Command
    • 3. lrange Command
    • 4. rpush Command
    • 5. llen Command
    • 6. lpop Command
    • 7. rpop Command
    • 8. lset Command
    • 9. linsert Command
    • 10. lindex Command
    • 11. lpushx Command
    • 12. rpushx Command
    • 13. sort Command
    • 14. lrem Command
    • 16. ltrim Command
    • 17. blpop Command
    • 18. brpop Command
    • 19. blmove Command
    • 20. lmpop Command
  • How to Treat a list like a queue? 
  • How to Treat a list like a stack?
  • Conclusion

Similar Reads

Redis Lists Commands

1. keys Command...

1. keys Command

Syntax: keys *...

2. lpush Command

Syntax: lpush list_name list_item...

3. lrange Command

Syntax: lrange list_name range...

4. rpush Command

Syntax: rpush list_name list_item...

5. llen Command

Syntax: llen list_name...

6. lpop Command

Syntax: lpop list_name...

7. rpop Command

Syntax: rpop list_name...

8. lset Command

Syntax: lset list_name index_no list_item_name...

9. linsert Command

Syntax: linsert list_name before/after list_item “Add_this_list_item”...

10. lindex Command

Syntax: lindex list_name index_no...

11. lpushx Command

Syntax: lpushx list_name list_item...

12. rpushx Command

Syntax: rpushx list_name list_item...

13. sort Command

Syntax: sort list_name ALPHA...

14. lrem Command

Syntax: lrem list_name no_of_item word...

16. ltrim Command

Syntax: ltrim list_name range...

17. blpop Command

Syntax: blpop list_name1 list_name2 time...

18. brpop Command

Syntax: brpop List1 List2 time...

19. blmove Command

Syntax: blmove list_name_source list_name_destination destination_left/right source_left/right time...

20. lmpop Command

Syntax: lmpop time numkey left/right count...

How to Treat a list like a queue?

To treat a list like a queue in Redis, you can use the following commands:...

How to Treat a list like a stack?

To treat a list like a stack in Redis, you can use the following commands:...

Conclusion

Redis lists provides a base for building high-performance applications. By understanding the Redis lists and their operations, developers can leverage the full potential of Redis to enhance their applications’ functionality and responsiveness....

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