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Questions & Help>Questions

Why do we need to use Enum.into(%{})?

I know this is a really minor peeve, but why is this the case?: iex(cs@localhost)54> %{key1: :i_am_a_map_whooot} |> Enum.map(&...

#language-implementation#language#enum

22 1707 14

2024-03-17 12:43:50 UTC

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Questions & Help>Questions

Nil > 25 returns true – is this expected behavior?

Hi everyone, I’m using Elixir 1.18.4 with OTP 27 (I’ve tested this across multiple versions of both Elixir and Erlang), and surprisingly...

#language#bug#behaviour

65 944 17

2025-07-03 16:02:16 UTC

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Questions & Help>Questions

Why is &__MODULE__.local/n faster than &local/n?

I noticed that if I pass a captured function (e.g. &logger/4) as an argument to :telemetry.attach/4, I get a warning: [info] The fu...

#language

8 400 2

2024-06-15 02:54:16 UTC

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Questions & Help>Questions

Why `<-` listed as `Left` associativity operator in elixir docs?

Here is the list and it is at the bottom of the table. I would expect that &lt;- would have a right associativity like =. Because in bot...

#language

7 249 3

2025-02-24 13:29:40 UTC

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Questions & Help>Questions

Trying to understand when to prefer Kernel.length/1 vs Enum.count/1

Is Kernel.length/1 intended only for guards? I feel like I see people using length(items) in non-guard scenarios. Should I prefer it over...

#language-implementation#language

6 3399 3

2020-12-28 21:36:26 UTC

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Questions & Help>Questions

Why are compile-time dependencies between modules transitive?

I use Elixir at work, on a pretty massive monolithic backend project – it’s about 750k lines of Elixir code, spread across a few dozen ap...

#compiling#language

41 2884 15

2023-04-04 22:42:01 UTC

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Questions & Help>Questions

Ordered sorting of a map to a keyword list

Just wondered if there is some standard library function for converting a map to a keyword list, but sorting it on the way. something li...

#language

10 1430 11

2023-10-16 21:36:27 UTC

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Questions & Help>Questions

How to see integer representation of a list of characters

Can someone explain to me why this allows me to see the integer representation of chars? ~c/cat\0/ [99, 97, 116, 0] And this does no...

#charlist#language

2 821 3

2018-05-12 07:04:49 UTC

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Questions & Help>Questions

Does this have a name?

Not a long ago I ask why the first of parame of def named call in there. Now I have a related question, what is the name of the part of...

#terminology

2 862 5

2022-05-31 03:39:13 UTC

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Questions & Help>Questions

String.to_integer/1 why no exclamation mark?

Surely this has been asked and explained before, but for some reason I couldn’t find it. String.to_integer/1 docs say: string must be ...

#language

1 601 3

2022-11-16 21:25:30 UTC

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Questions & Help>Questions

Can't install elixir 1.9.x using asdf (test failure)

I have this issue on my laptop (Ubuntu 20.04) where I cannot install the source versions of elixir 1.9.x using asdf. Both 1.10.x and 1.11...

#compile#language#asdf

0 689 0

2020-11-03 10:35:35 UTC

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