Advertisements In Elixir, I have the following list: [ :juridical_person_document, [re_developments: [[properties: [[re_development: [:re_developer]]]]]], :legal_address ] And my desired output would be this: [ :juridical_person_document, re_developments: [properties: [re_development: [:re_developer]]], :legal_address ] In other words, I want to remove the unnecessary square brackets. How can I achieve that? I am aware that this can be achieved… Read More In Elixir, how to fix a nested list

Advertisements I am trying to render a list of goals saved on the database on an index page, and to create a unique id for the divs, I added the goal_id to the id, like this: <%= for goal <- @goals do %> <p class="text-black block text-xl leading-snug mt-3"> <%= goal.description %> </p> <div class="text-gray-500… Read More Javascript not working as expected when show/ hide

Advertisements I try to do the following thing in Elixir that can be achieved in Python: sum = 0 for elem in list: if elem >= 5: sum += 1 For example: I want to return the number 3 given the list [0, 5, 8, 3, 10] This is what I did in Elixir (this… Read More Elixir equivalent of a for loop that count number of occurences when condition is satisfied

Advertisements my erlang version is 24 and it does not support ripemd160 hash algorithm and i don’t know why. the erlang crytpo document says it is a supported algorithm. crypto:start(), B = crypto:hash(ripemd160, H). it gives me this error: ** exception error: notsup in function crypto:notsup_to_error/1 (crypto.erl, line 2147) i searched online for this and… Read More Erlang: ripemd160 not supported

Advertisements I’m learning Elixir and I’m having a difficulty with this simple problem: I have a list of values: my_list = ["a", "b", "c", "y", "z", "a", "e"] And I have a map: my_map = %{"a" => -1, "b" => 0, "c" => 1, "d" => 2, "e" => 3} I want to loop through… Read More Loop through a list of values, find matches in keys and sum matched values in Elixir

Advertisements I want to take [{‘O’, ‘L’}, {‘E’, ‘L’}, {‘O’, ‘H’}, {‘E’, ‘L’}, {‘E’, ‘H’}] and change it to ["OL", "EL", "OH", "EL", "EH"] but I am not seeing how. Help? >Solution : Maybe like this: Enum.map(my_list, fn {a, b} -> List.to_string([a, b]) end)

Advertisements when adding document to private function by @doc, in vscode compiler gives the warning message. I can’t find @docp for @doc. defp check_subscript!/3 is private, @doc attribute is always discarded for private functions/macros/typesElixir function is as follows: @doc """ check subscript decreasing or increasing """ defp check_subscript!(x, x1, x2) when x > x1 and… Read More how to write document for defp function?

Advertisements When trying to manual rending, the following error message is received (phoenix_view 1.1.2) Phoenix.View.render(PenWeb.LoginView, "show.html") iex(21)> Phoenix.View.render(PenWeb.LoginView, "show.html", message: "Hello from IEx!") %Phoenix.LiveView.Rendered{ dynamic: #Function<0.19280611/1 in PenWeb.LoginView."show.html"/1>, fingerprint: 131643824716591738070856747524267661638, root: false, static: ["<h2>Log in</h2>\n", ""] } iex(22)> Phoenix.View.render_to_string(PenWeb.LoginView, "show.html", message: "Hello from IEx!") ** (UndefinedFunctionError) function Endpoint.path/1 is undefined (module Endpoint is not available)… Read More when controller debuging, error "Endpoint.path/1 is undefined (module Endpoint is not available)" appeared

Advertisements The list is like [{0,10},{2,20}]. I have get value 10 when provided by key as 0. I haven’t find the suitable function in Enum, List, Keyword module, and have to use erlang module proplists to solve the problem. Is it necessary? inventory_position_list = [{0,10},{2,20}] x = :proplists.get_value(0,inventory_position_list) >Solution : I believe List.keyfind/4 or List.keyfind!/3… Read More how to get value from keyword list which key is integer?

Advertisements The data is: [{{0, 0, 0}, 0}, {{0, 3, 6}, 0}, {{0, 3, 9}, 0}, {{0, 4, 6}, 0}] I want to transform it to as follows, How to write the sort condition? [{{0, 0, 0}, 0}, {{0, 3, 6}, 0}, {{0, 4, 6}, 0}, {{0, 3, 9}, 0}] My writen code is not… Read More how to sort tuple list by first element, third element, then second element?