Latest #list Threads 
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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Problem
Currently, List.first/2 and List.last/2 return a default value (or nil) when the list is empty. However, there are cases where an...
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Hi!
I have been dealing with some problem where I have a nested list, I want to keep the nested structure, but if the list is a two elem...
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I want to use get_in(data, keys) for a nested map with some values having a list with maps.
map = %{a: 1, aa: [%{b: 2}, %{bb: 22}], aaa:...
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I am going through some tutorials, and one of the tasks is to create a list of items by taking first two elements of the existing item an...
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I’m encountering a strange issue when using Enum.filter/2 in my Elixir script. The problem occurs when I filter a list with a condition t...
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In Elixir, I have to use the list of integers and work with that,
If my input is [55] it gives the data as ‘7’ but I need it to be [55] ...
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One common problem we face in constructing lists is that there is (AFAIK) no support for conditionally inserting members into list declar...
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I have a nested list that should follow a rules to update a record or add a record.
I have a keys list which is the path I need to updat...
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Hi,
is there a preferred way to keep a list number of items under a certain limit ?
In my project there is a GenServer module receiving...
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Problem
Currently, List.first/2 and List.last/2 return a default value (or nil) when the list is empty. However, there are cases where an...
New
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...
New
Last Three Year's Trending
Hi,
is there a preferred way to keep a list number of items under a certain limit ?
In my project there is a GenServer module receiving...
New
in python, there is
>>> a=[]
>>> a.append(a)
>>> a
[[...]]
how to implement this in elixir?
New
I am going through some tutorials, and one of the tasks is to create a list of items by taking first two elements of the existing item an...
New
One common problem we face in constructing lists is that there is (AFAIK) no support for conditionally inserting members into list declar...
New
I have a nested list that should follow a rules to update a record or add a record.
I have a keys list which is the path I need to updat...
New
In Elixir, I have to use the list of integers and work with that,
If my input is [55] it gives the data as ‘7’ but I need it to be [55] ...
New
I want to use get_in(data, keys) for a nested map with some values having a list with maps.
map = %{a: 1, aa: [%{b: 2}, %{bb: 22}], aaa:...
New
I’m encountering a strange issue when using Enum.filter/2 in my Elixir script. The problem occurs when I filter a list with a condition t...
New
Hi!
I have been dealing with some problem where I have a nested list, I want to keep the nested structure, but if the list is a two elem...
New
Trending Over Three Years
I have a list say
x = ["23gh", "56kh", "97mh"]
I would like to pass each element to Val in each iteration.
Say, in iteration 1 -------...
New
l1 = ["1","2","5","9"]
l2 = ["1","9"]
List.contains?(l1,l2)
Anything like this? to check if l2 is a sublist of l1.
I know can use Enum....
New
Hi,
I have a list of maps such as:
[%{x: a, y: 1}, %{x: a, y: 1}, %{x: b, y: 0}, %{x: b, y: 1}]
From this I would like to find out how...
New
Story
skip this if you are not interested in the Why
Today I was working on a rewrite of a feature, heavily relying on a 3rd Party HTTP...
New
we can create a list like this
list = [ a: 1, b: 2, c: 3 ]
but i can’t found api to add element with key to list?
list = []
key = :a
...
New
Hello Elixirforum,
Could you please explain how List Comparison works in Elixir?
Why such list of integers returns true
iex(15)> [3...
New
Is there a way to take multiple lists and get all the elements at their n th index and pass them to the function?
For example, list1 (= ...
New
I have this list of maps (or structs) and I get a list of newly updated maps. I want to update the maps in the old list with the values f...
New
I have a list of maps.
For example,
students = [%{ sid: 1, name: "Bob", score: 80}, %{ sid: 2, name: "Kelly", score: 60},.....]
I have...
New
I’m having trouble trying to zip lists of different lengths because elixir only returns the first match of each list.
I have the followi...
New
The length(List) function can be used in Guards if we want to have different methods based on the length of a list , but can we use the l...
New
Hey I am trying to make a very simple shopping site with elixir/phoenix, and I have the items done, but how can I make a shopping cart th...
New
Hey I have a list of maps, and those maps are items such:
[
%purchase{
amount: #Decimal<2.0>,
command: "buy",
id: 71,
...
New
Hi, I have a big list in my GenServer which I want to load them as a pagination, for example I counted it and I have x records and I want...
New
Hi all, I have a .txt file with information like this
11111 0
11112 1
11113 2
11114 3
11115 4
11116 5
11121 6
11122 7
…
66664 z...
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