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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
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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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...
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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...
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] ...
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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’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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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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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...
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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...
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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...
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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...
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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...
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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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