I can't see why not just `x |> Stream.with_index() |> Stream.map(fn {v, i}
-> {i, v} end)`... I mean, lots of proposals for similar functions got
denied because it would be easy to develop a lib that does it cause Elixir
is awesomely extensible, so why bothering add another variant? Do you have
to do that too many times on Elixir core or something like that?
Em terça-feira, 8 de dezembro de 2020 às 17:44:45 UTC-3, [email protected]
escreveu:
> If this is related to the mystery benchmark tweets, José, then I guess I'm
> in favor of the proposal :-)
>
> I do prefer Felipe's name of `Enum.indexed/1` though. While `index` can be
> a verb, it's ambiguous with the noun. `indexed` is clearly a past tense
> verb.
>
> -Greg Vaughn
>
> > On Dec 8, 2020, at 2:13 PM, José Valim <[email protected]> wrote:
> >
> > I considered the option but I prefer to avoid using options that change
> the return type.
> >
> > On Tue, Dec 8, 2020 at 9:11 PM Felipe Stival <[email protected]> wrote:
> > I'm not sure. Sounds a bit ambiguous, couldn't this be an option for a
> new Enum.with_index/3?
> >
> > Em ter., 8 de dez. de 2020 às 17:05, José Valim <[email protected]>
> escreveu:
> > I would like to propose an Enum.index/2 function. It behaves like
> with_index/2 but the index is the first argument:
> >
> > iex> Enum.index([:a, :b, :c])
> > [{0, :a}, {1, :b}, {2, :c}]
> >
> > I am hoping it reads "index" this tuple (hence the index as the first
> element. While with_index means attach an index information to each element
> (hence the second element). Is this sound?
> >
> > Thank you,
> >
> >
> > --
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> .
> >
> >
> > --
> >
> > Felipe Stival, Electrical Engineering Student
> > Santa Maria, Rio Grande do Sul
> > Brasil
> > v0idpwn.github.io
> >
> >
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> .
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>
>
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