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I heard that editing a tuple is a much more expensive operation then editing a list
i just don’t get the why, when a list is mutated a n...
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Last Three Year's Trending
Hello.
I’m trying to check if a list has duplicates.
I didn’t have problems doing it with length and size:
def duplicate(list) do
...
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How can I efficiently append one entry to a list? Is this the best solution:
history = [{1,100}, {2,300}, {3,200}]
current = {4,150}
ch...
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Heya.
I am inviting you to copy-paste the module below and add your own functions and measure them, or simply give other ideas about how...
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I did not formally study Computer Science, so please bear with me if I am missing something obvious. I am studying the inner workings of ...
New
I have the following list:
[
:juridical_person_document,
[re_developments: [[properties: [[re_development: [:re_developer]]]]]],
...
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I am keeping connections to a list of servers represented by URLs. Each of them has a pid if connected.
Ideally, I’d like to have a simp...
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Greetings friends!
I am reading through SCIP and using Elixir to help me work through the material (to better understand both the materi...
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I have a function that takes a list as input. If I call the function with a range e.g.
0..3 it doesn’t work. I assume I need to make ano...
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Trending Over Three Years
Often I want to create a list in Elixir that contains certain elements, but only if specific conditions are met for each element or group...
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I have a list. I am trying to choose specific combinations from that list and making a list of list of those combinations.
My code runs ...
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Hello everybody,
As it’s possible to partially pattern match with maps like so:
iex> %{b: 2} = %{a: 1, b: 2, c: 3}
%{a: 1, b: 2, c: ...
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On a page there’re 3 columns. And I have a list of objects. Every object should go one of the 3 columns in the subsequent order.
1 → 1, ...
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I have a list of tuple like this
tuple = [{"id", "provider_id"}, {"cost", "price"}] .
And i have list of maps:
list_of_maps...
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A proper list is a list that ends in an empty list, such as:
[1, 2, 3] (which is syntactic sugar for [1 | [ 2 | [3 | [] ] ] ] )
An impr...
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And how to convert the above list to [1, 2] (i.e. to list of integers). Thank you.
New
Hi community,
Being a newbie, this question may seems obvious for you, functional veterans (i’m discovering new skies with elixir and er...
New
I need to turn an integer into a list of digits.
For example, given 1234 as input, the output should be [1, 2, 3, 4].
I am doing this r...
New
What is the Elixir equivalent to Ruby’s Hash.new where you can specify a block that returns an empty list when you access a non-existent ...
New
Hi,
Is there an easier way to convert a list of structs to map. Extracting fields from the struct and in the nested struct and make it a...
New
Hi everybody,
Edit for TL;DR:
How I can use SQL array_agg aggregate function with an Ecto fragment.
Particularly how I can nest the se...
New
Hi, I have a list which includes some string or integer item that I need to convert it to string with a character like “/”, then I used E...
New
Hey guys, just want a little help.
(1) How can I compare two list of maps and always supersedes list_2 over list_1 if they have the same...
New
I’m managing my Postgres database with Ecto and I have come across a situation: In some of the fields for some of my records, I save empt...
New
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