yolo007wizard

yolo007wizard

Kernel.apply/3 exception

Kernel.apply/3 keeps throwing this exception. I’m trying to dynamically run a module name + def from a map string field.

MathOperators.multiplier(event, inputs)

works however

Marked As Solved

JohnnyCurran

JohnnyCurran

Hi,

In Elixir, Module names are actually prefixed with “Elixir” – You can see this in IEx:

iex(18)> Atom.to_string(MyModule)
"Elixir.MyModule"

So, the error is technically correct – “MathOperators” as a module doesn’t exist, but “Elixir.MathOperators” does!

The Module concat/1 and concat/2 functions can help alleviate this problem for you:
https://hexdocs.pm/elixir/1.13.4/Module.html#concat/1

So, instead of, String.to_atom("MathOperators"), try: Module.concat(["MathOperators"]) :slight_smile:

Where Next?

Popular in Questions Top

JorisKok
I have a server on AWS, and was running a load test using artillery. When looking at the Phoenix dashboard I see the Ports going to 100% ...
New
albydarned
Hello all! I am typing this post from my new MacBook Pro with the M1 chip. I’m loving it so far, and will probably use it as my daily dr...
New
ycv005
I have followed this StackOverflow post to install the specific version of Erlang. And When I am running mix ecto.setup then getting fol...
New
tduccuong
Hi, is there any work on GUI with Elixir, that is similar to Electron/Javascript? My idea is to bundle Phoenix and BEAM into a single se...
New
New
chensan
I have a User schema with a :from_id field set to type :string: defmodule TweetBot.Repo.Migrations.CreateUsers do use Ecto.Migration ...
New
Fl4m3Ph03n1x
About me? ( if you have nothing better to do than reading about some random guy in the internet :stuck_out_tongue: ) Hello all, this is ...
New
Codball
Mix format works fine if run from the cmd. I’ve followed this to facilitate the implementation into VSC which involves downloading an ext...
New
Qqwy
Original source of discussion: This topic on the Pragmatic Programmers' Functional Web Development with Elixir, OTP, and Phoenix forum. ...
New
lucidguppy
I have a super simple question about elixir - how would I take a file like this foo bar baz and output a new file that enumerates th...
New

Other popular topics Top

TunkShif
This post is an instruction guide to help you setup your Neovim for Elixir development from scratch. It includes general information on h...
273 38985 115
New
senggen
Erlang/OTP 25 [erts-13.2.2] [source] [64-bit] [smp:8:8] [ds:8:8:10] [async-threads:1] 15:22:35.803 [error] gen_event {lager_file_backend...
New
sergio_101
I am VERY much an elixir newbie. I have taken one elixir course and one phoenix course on Udemy. During that course, I saw the instructor...
New
Jim
As a follow up to my earlier question: I have the code compiling and running but not getting a successful login from the rest server. ...
New
nsuchy
Hi. I’ve noticed that Windows Powershell has it’s own IEX command and you cannot access Elixir’s IEX due to the conflict. This isn’t a cr...
New
alice
Hey, Just curious what are the main benefits of Elixir compared to Clojure? When is Elixir more useful than Clojure and vice versa? Th...
New
WestKeys
Currently suffering from paralysis by [HTTP client] analysis. This is rather unusual in Elixirland as there tends to be consensus on the ...
New
beno
I will often find my self writing things similar to: case some_value do nil -> something() "" -> something() _ -> someth...
New
Qqwy
Original source of discussion: This topic on the Pragmatic Programmers' Functional Web Development with Elixir, OTP, and Phoenix forum. ...
New
jay1
Why is it that the mnesia database isn’t the most preferred database for use in Elixir/Phoenix?
New

We're in Beta

About us Mission Statement