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I can’t seem to pass an anonymous function as an option to a Plug. I am using plug_hmouse which from the documentation takes an option di...
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Hi,
I’m trying to create some syntactic sugar through a macro. The basic function should look like the following:
f :name do
data.som...
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Hello,
I am testing below code
fibonaci = fn
0 -> 0
1 -> 1
n -> fibonaci.(n-1) + fibonaic.(n-2)
end
IO.puts fibonaci.(...
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Trending Over Three Years
(fn ->
{:ok, naive_date_time} =
NaiveDateTime.new(Date.utc_today(), (fn -> {:ok, time} = Time.new(3, 2, 00); time end)....
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Completely new to Elixir, but have an issue I am trying to figure out:
When interviewing candidates for Javascript roles I usually have ...
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Background
I have a filter to where I am passing an anonymous function. In this function I want to check that the key of the tuple I am e...
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I’ve been struggling with this for a few hours now and there must be an easy answer despite my inability to search and find answers.
So ...
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Capture operator & ampersand - can always I thing about it as fn x?
Hi Everybody,
Could you please help me understand how does capt...
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So something like this fails to compile:
def streamfun_from_string(str) do
fn(skip_headers \\ true) ->
..
end
end
I am wonde...
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Hey everyone!
This is a multi-layered question and I’ll try my best to try and phrase it cleanly.
As an abstract use case I want to hav...
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In an anonymous function you can pattern match on same argument multiple times
color_of = fn
"fire" ->
IO.puts "red"
"water...
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I was trying to write this Enum.reduce([1,2,3], &Kernel.+(&1, &2)) more succinctly and I discovered I could do Enum.reduce([1...
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I am a beginner trying to make an anonymous function that takes two parameters. It needs to use guards to check if the two values are bot...
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Hi, Im having a bit of trouble with anon. functions using the Vex validator.
defmodule Test do
@enforce_keys [:wallet_id, :withdrawal,...
New
Hello,
I’m trying to create a new list from a map I’m given like so
Enum.map(params, fn {k,v} -> if String.contains?(k, "checklist")...
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Hi all,
for the identity function we have &(&1) as a shortcut, but &(true) does cause a compiler error. Understandably, sinc...
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I’m current learning Elixir by the book Elixir in Action 2nd Edition. On chapter 3 at Stream functions exercises i’ve solved them a bit d...
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I recently detected a bug (thanks, Dialyzer!) where I was calling an anonymous function with the wrong number of arguments. What confuses...
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