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lrem

LREM

LREM key count value

Available since 1.0.0.

Time complexity: O(N) where N is the length of the list.

Removes the first count occurrences of elements equal to value from the list stored at key. The count argument influences the operation in the following ways:

  • count > 0: Remove elements equal to value moving from head to tail.
  • count < 0: Remove elements equal to value moving from tail to head.
  • count = 0: Remove all elements equal to value.

For example, LREM list -2 "hello" will remove the last two occurrences of "hello" in the list stored at list.

Note that non-existing keys are treated like empty lists, so when key does not e