LPUSHX

Syntax
LPUSHX key element [element ...]
Available since:
Redis Open Source 2.2.0
Time complexity:
O(1) for each element added, so O(N) to add N elements when the command is called with multiple arguments.
ACL categories:
@write, @list, @fast,
Compatibility:
Redis Enterprise and Redis Cloud compatibility

Inserts specified values at the head of the list stored at key, only if key already exists and holds a list. In contrary to LPUSH, no operation will be performed when key does not yet exist.

Examples

Redis Enterprise and Redis Cloud compatibility

Redis
Enterprise		 Redis
Cloud		 Notes
✅ Standard
✅ Active-Active		 ✅ Standard
✅ Active-Active

Return information

Integer reply: the length of the list after the push operation.

History

  • Starting with Redis version 4.0.0: Accepts multiple element arguments.