I also think that the name `count_by` does not describe it well. It looks like a function that receives a function to filter in which items to count. Like in:
iex> Enum.count_by(1..10, &rem(&1, 2)) 5 `group_count_by` is clearer IMO. But maybe `count_group_by` is more semantically correct, since “group count” seems like “the quantity of groups”. Best, Kelvin Stinghen [email protected] > On Oct 17, 2019, at 19:43, OvermindDL1 <[email protected]> wrote: > > I personally think the `count_by` name implies some other operation then a > grouped count (to me I'd expect an RLE style count), I like the prior > mentioned `group_count_by` or `group_count`. > > On Thursday, October 17, 2019 at 2:07:56 PM UTC-6, José Valim wrote: > Hi Osawa, > > Please send a pull request for Enum.count_by: > > iex> Enum.count_by(~w{aa aA bb cc}, fn x -> String.downcase(x) end) > %{"aa" => 2, "bb" => 1, "cc" => 1} > > It is meant to mirror group_by. > > If someone has an objection against count_by, please let us know. > > -- > You received this message because you are subscribed to the Google Groups > "elixir-lang-core" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] > <mailto:[email protected]>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/elixir-lang-core/fafa74a1-4a27-4f14-8844-1ecac91ffba2%40googlegroups.com > > <https://groups.google.com/d/msgid/elixir-lang-core/fafa74a1-4a27-4f14-8844-1ecac91ffba2%40googlegroups.com?utm_medium=email&utm_source=footer>. -- You received this message because you are subscribed to the Google Groups "elixir-lang-core" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/elixir-lang-core/A0FD01DF-3FB1-4282-8C7D-676F55241558%40gmail.com.
