My point wasn’t about adding a join but a then option (like Kernel.then), which seems much more versatile.
Whatever I was expecting a no :) Le 15 nov. 2024 à 11:10 +0100, José Valim <jose.va...@gmail.com>, a écrit : > It is the same answer as before, I am afraid. The path to adding :join is > also the path to adding :intersperse, and :sum, and :product, etc. We should > have a general mechanism for expressing those, instead of individual options. > > And, as before, a joiner does not really work well with into and reduce. > > > José Valim > https://dashbit.co/ > > > > On Fri, Nov 15, 2024 at 11:06 AM Christian Blavier <cblav...@gmail.com> > > wrote: > > > Hey there, > > > > > > I'm still thinking about extending comprehension. What about a `then` > > > option? > > > for i <- 1..3, do: i, then: &Enum.sum/1 > > > for s <- ~w(a b c), do: s, then: &Enum.join(&1, ", ") > > > (I know this can be achieved more efficiently with a reduce, but > > > sometimes concise syntax is a better choice) > > > > > > > Le mardi 21 juin 2022 à 18:40:46 UTC+2, José Valim a écrit : > > > > > It should probably be done with using `into: joiner(",")`, where the > > > > > joiner implements the collectable protocol. join itself probably > > > > > doesn't make much sense because it doesn't play well with other > > > > > options such as :into itself, or :reduce. > > > > > > > > > > > On Tue, Jun 21, 2022 at 6:15 PM Christian Blavier > > > > > > <cbla...@gmail.com> wrote: > > > > > > > Do you think a join option would be a good idea for > > > > > > > comprehensions? > > > > > > > Something like Enum.map_join/2 that could map and join lists in a > > > > > > > single pass. > > > > > > > book_ids = for book <- books, join: ",", do: book.id > > > > > > > If it looks like a good idea, I will open a PR. > > > > > > > Best, > > > > > > > Christian > > > > > > > -- > > > > > > > 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/f8b94dec-35a1-4b78-a14c-6913c7206fe3n%40googlegroups.com. > > > -- > > > 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 visit > > > https://groups.google.com/d/msgid/elixir-lang-core/736e38fd-e0dd-4489-b079-73c116b5ecb7n%40googlegroups.com. > -- > You received this message because you are subscribed to a topic in the Google > Groups "elixir-lang-core" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/elixir-lang-core/tF2Xw8nq-O0/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > elixir-lang-core+unsubscr...@googlegroups.com. > To view this discussion visit > https://groups.google.com/d/msgid/elixir-lang-core/CAGnRm4JEM%3DUD70e%2BpNXyKQqNxMB_gZnMbj%2By8ZH7tTr6rO5ahQ%40mail.gmail.com. -- 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 visit https://groups.google.com/d/msgid/elixir-lang-core/96f52834-4980-4679-a2ac-b22afacf12cd%40Spark.
