Latest #anonymous-functions Threads 
Hello,
I am testing below code
fibonaci = fn
0 -> 0
1 -> 1
n -> fibonaci.(n-1) + fibonaic.(n-2)
end
IO.puts fibonaci.(...
New
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...
New
Hello, I am new to elixir and I am trying to call my anonymous function defined in my “ex” file like so:
package_data = fn
(x, [y]) -&...
New
I am new to elixir and I am trying to make a recursive anonymous function, but for some reason my anynymous function that works on it’s o...
New
Consider the following code:
iex> fn1 = fn x -> x end
#Function<42.3316493/1 in :erl_eval.expr/6>
iex> fn2 = fn x -> ...
New
Is there anyway to print this &1?
I usually don’t know what the value is since was written by a generator, and doing IO.inspect(&...
New
Hi all,
I’m learning Elixir/OTP and am stumped by a certain behaviour. I’m declaring an anonymous function in a module, then when I atte...
New
I’m curious to know if there is any reason for not allowing named anonymous functions in elixir as it’s possible in erlang. I’ve looked u...
New
Hi, Im having a bit of trouble with anon. functions using the Vex validator.
defmodule Test do
@enforce_keys [:wallet_id, :withdrawal,...
New
Background
While playing around with dialyzer, typespecs and currying, I was able to create an example of a false positive in dialyzer. A...
New
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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...
New
I am new to elixir and I am trying to make a recursive anonymous function, but for some reason my anynymous function that works on it’s o...
New
Hello,
I am testing below code
fibonaci = fn
0 -> 0
1 -> 1
n -> fibonaci.(n-1) + fibonaic.(n-2)
end
IO.puts fibonaci.(...
New
Hello, I am new to elixir and I am trying to call my anonymous function defined in my “ex” file like so:
package_data = fn
(x, [y]) -&...
New
Trending Over Three Years
(fn ->
{:ok, naive_date_time} =
NaiveDateTime.new(Date.utc_today(), (fn -> {:ok, time} = Time.new(3, 2, 00); time end)....
New
Completely new to Elixir, but have an issue I am trying to figure out:
When interviewing candidates for Javascript roles I usually have ...
New
Today I realized that it would be possible to implement currying-capability in Elixir, using some clever anonymous function creation. ('c...
New
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...
New
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 ...
New
Capture operator & ampersand - can always I thing about it as fn x?
Hi Everybody,
Could you please help me understand how does capt...
New
So something like this fails to compile:
def streamfun_from_string(str) do
fn(skip_headers \\ true) ->
..
end
end
I am wonde...
New
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 h...
New
In an anonymous function you can pattern match on same argument multiple times
color_of = fn
"fire" ->
IO.puts "red"
"water...
New
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...
New
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...
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")...
New
Hi, Im having a bit of trouble with anon. functions using the Vex validator.
defmodule Test do
@enforce_keys [:wallet_id, :withdrawal,...
New
Hi all,
for the identity function we have &(&1) as a shortcut, but &(true) does cause a compiler error. Understandably, sinc...
New
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...
New
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