I am not sure we want to encourage those functions. The mentioned languages have a static type system, which means you know the shape upfront.
In Elixir, we don’t, so we want to prefer pattern matching as much as possible, as it also helps assert on tuple size and help catch mistakes. On Mon, May 22, 2023 at 07:00 Kurtis Rainbolt-Greene <kurtis@rainbolt-greene.online> wrote: > I wanted this set of functions originally, though I never used any of > those languages, so I suspect it's natural, I even implemented them in > almost every project. That said now the |> &f(&1, a) syntax is so natural > to me that I've since removed those functions. I don't think you can go > *wrong* by adding it to the core lib, but you couldn't make me decide on a > name with my job on the line. > > On Sun, May 21, 2023 at 9:00 PM Felipe Stival <v0id...@gmail.com> wrote: > >> In general I am a +1, but I'd rather have these utility functions under >> `Tuple`, as `Tuple.first/1` and `Tuple.second/1`. >> >> >> Em segunda-feira, 22 de maio de 2023 às 07:25:03 UTC+6, >> halos...@gmail.com escreveu: >> >>> Personally, I think that the names are excessively short and confusing. >>> `first_elem` and `second_elem` would be more meaningful. >>> >>> -a >>> >>> On Sun, May 21, 2023 at 9:06 PM Vinícius Müller <vinig...@gmail.com> >>> wrote: >>> >>>> Currently it is necessary to do `|> &elem(&1, 1)` or `|> &elem(&1, 2)` >>>> when trying to get a specific element of a tuple in a pipeline or normally. >>>> >>>> F#[0], Haskell[1], Ocaml[2] and other functional languages have the >>>> `fst` and `snd` functions, which simply extract the first and second >>>> elements of a tuple, respectively. >>>> >>>> I think it would make some code samples simpler, since it reads much >>>> better, I guess it's the same idea as using `|> hd()` rather than doing `|> >>>> fn [h | _] -> h end`. >>>> >>>> Does this makes sense for Elixir? If so, I'm willing to implement it. >>>> >>>> [0]: >>>> https://learn.microsoft.com/en-us/dotnet/fsharp/language-reference/tuples#obtaining-individual-values >>>> [1]: >>>> https://hackage.haskell.org/package/base-4.18.0.0/docs/Prelude.html#g:3 >>>> [2]: https://v2.ocaml.org/api/Stdlib.html >>>> >>>> -- >>>> 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 elixir-lang-co...@googlegroups.com. >>>> To view this discussion on the web visit >>>> https://groups.google.com/d/msgid/elixir-lang-core/8c965a60-d8a5-4384-aeb4-182a86c085bbn%40googlegroups.com >>>> <https://groups.google.com/d/msgid/elixir-lang-core/8c965a60-d8a5-4384-aeb4-182a86c085bbn%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> . >>>> >>> >>> >>> -- >>> Austin Ziegler • halos...@gmail.com • aus...@halostatue.ca >>> http://www.halostatue.ca/ • http://twitter.com/halostatue >>> >> -- >> 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 elixir-lang-core+unsubscr...@googlegroups.com. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/elixir-lang-core/09a1566c-01d0-4f4a-8548-0e9b7d18c6fbn%40googlegroups.com >> <https://groups.google.com/d/msgid/elixir-lang-core/09a1566c-01d0-4f4a-8548-0e9b7d18c6fbn%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > > > -- > Kurtis Rainbolt-Greene, > Software Developer & Founder of Difference Engineers > 202-643-2263 > > -- > 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 elixir-lang-core+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/elixir-lang-core/CAMhJPGiaayfevpSQQug_T8GNrgEgjhcjuFzp%3DHnBs6kSps2c1Q%40mail.gmail.com > <https://groups.google.com/d/msgid/elixir-lang-core/CAMhJPGiaayfevpSQQug_T8GNrgEgjhcjuFzp%3DHnBs6kSps2c1Q%40mail.gmail.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 elixir-lang-core+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/elixir-lang-core/CAGnRm4%2Bh_yYaGrEJovV7EKezCx1NoaDk1VzxAhZhx3ig8v%3DEqA%40mail.gmail.com.
