michalmuskala:
I have no idea why this discussion continues, and where is the confusion. I have no idea where do you expect it to lead by arguing about 0-based and 1-based indexation.
Elixir uses 0-based indexation everywhere. That’s it. There is no confusion what Enum.at(4) returns - the item with index 4, which is the fifth element of the collection.
As I stated in the first post, there’s entirely no reason to introduce List.nth/2 since this is completely covered by Enum.at/2. The performance is also exactly the same for both, as both use exactly the same code when executed on lists. It makes no point to introduce a 1-based list access when access everywhere in elixir, to all indexed structures is 0-based.
Please let’s stop this discussion if there’s nothing constructive to add.
As a bit of terminology, an index of a collection starts at 1, an offset into a collection starts at 0. Most languages use offset (regardless of what word they use).
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