This Week's Trending
This Month's Trending
This Year's Trending
Last Three Year's Trending
How can I pattern match against an arbitrary sized tuple? This works:
{status, _, _} = {:ok, 1, 2}
But what if I don’t know the structu...
New
The question in the subject line is pretty self-explanatory, and I’m trying to understand perhaps a hidden misunderstanding. My understan...
New
If I have nested structures, and I want to fetch a field from the a nested structure, but handle a nil case, is there a succinct way to d...
New
Hi! I’m working in a liveview and want to fill attributes such as id, for label and title with a value from a for-loop.
<ul>
...
New
This is highly subjective but in my mind Haskell and Ruby/Rust has one of the most beautiful lambda syntax
\a b → a + b
and
|a, b| a +...
New
Hi :person_raising_hand: so, the Regex module supports named captures. Here’s an example from the docs for named_captures/3, which extrac...
New
In the latest versions. For the definitions of the functions as well as for calls.
What’s recommended?
New
Hello,
I am wondering why it is not needed to unquote with defmodule when using variables that are defined outside of the call to defmod...
New
Trending Over Three Years
def fun(options) do
[parameter1: parameter1, parameter2: parameter2] = Enum.into(options, parameter1: 1, parameter2: 2)
Is there an ...
New
I’ve seen -> and <- used in Elixir books and articles, but I have not found a clear explanation to what they are called, and when t...
New
I have seen the pattern %_{} being used to match against structs (notice the _ after the %).
Is this documented somewhere? It seems to m...
New
Hello! Elixir's syntax is pretty and expressive, but at the same time this comes on the cost of knowing just what the best way to write s...
New
For example the following,
iex(16)> cond do
...(16)> 2 + 2 == 5 ->
...(16)> "Not true"
...(16)> 2 * 2 == 3 ->
...(...
New
Hello, friends!
Context:
As you might know from this thread, I’m working on a presentation.
Following a tour of Erlang history, I have...
New
I think that this is called a function reference but I’m not sure.
Anyway, this works:
def start_link(_arg) do
Task.start_link(&c...
New
In the source code I find this pattern repeated over and over.
As an example, in the elixir-1.5.3/lib/elixir/lib/enum.ex I find:
@sp...
New
I’m wondering exactly what a do block is.
Is it a closure? Is it a procedure? Is it an anonymous function? Is it a lambda? Is it som...
New
Hi all. I was searching for ways to determine whether or not an Ecto query results in (a) result(s) without requiring the database to sel...
New
In Elixir Succinctly I read:
Since everything in Elixir is an expression, and if is no exception, the if…else construct returns a value...
New
Here’s a screenshot of part of the Range API:
What does the Types section communicate?
To whom is it useful?
What is this syntax … ...
New
I don't understand how the capture syntax in the following expression is aware of how to use arguments without specifying &1 and &...
New
I have got the recommended plugins ie vim-elixir and alchemist.vim but not quite sure whether I needs something else fo intellisense, suc...
New
So I have a ~>/3 operator in scope and am trying to pipe in to it like:
a
|> (b ~> c)
And this works just fine if I build the ...
New
Latest on Elixir Forum
Get money off!
The Pragmatic Bookshelf
35% off any eBook
Manning Publications
45% off any item
ElixirCasts
10% off for life
The Pragmatic Studio
20% off any course
AppSignal
10% off for 12 months
Honeybadger
10% off for 12 months
Simply use coupon code "devtalk.com" or "elixirforum" at checkout!
Filter by Type:
Sub Categories:
Popular Tags
- #ecto
- #liveview
- #troubleshooting
- #learning-elixir
- #deployment
- #erlang
- #testing
- #genserver
- #mix
- #absinthe
- #ash-questions
- #remote-other
- #otp
- #plug
- #how-to-question
- #macros
- #postgres
- #channels
- #exunit
- #discussion
- #javascript
- #elixirconf
- #library
- #oban-questions
- #dialyzer
- #docker
- #onsite
- #authentication
- #podcasts
- #full-time-contract
- #umbrella
- #code-sync
- #ecto-query
- #phoenix_html
- #iex
- #graphql
- #genstage
- #elixir-ls
- #nerves-questions
- #podcasts-by-brainlid
- #supervisor
- #websockets
- #distillery
- #advent-of-code
- #blog-post
- #livebook-questions
- #processes
- #forms
- #api
- #metaprogramming
Forums
Our Sponsors
Build Elixir applications with speed and confidence.
Supporting innovation across the BEAM ecosystem.
We build reliable cloud platforms for business-critical systems.
Catch errors, track performance, monitor hosts and more.
Practical resources that improve the lives of professional developers.
Develop your skills with books, videos, and courses.
Enabling companies to succeed by building software people love.
Courses that'll move you from confusion to "Aha, now I get it!"