Feat: remove_item_from_list

[nelsonic]

Need this function and it doesn't appear to exists from my reading in the docs
for both https://hexdocs.pm/elixir/1.13.4/List.html and https://hexdocs.pm/elixir/1.13.4/Enum.html

We can implement it easily using a combination of functions.
But what I want is a one-line function that clearly says what it does and means I don't have to keep implementing this!

Todo

• Write tests
• Implement the function
• Ship the package!

[nelsonic]

Package published to https://hex.pm/packages/useful/1.13.0 📦 🚀
PR: #57

[nelsonic]

Just remembered that all functions in the Elixir Standard library
that deal with "enumerables" (Enum, List, Map)
place the Enum first in the argument list for a function
so that they can be piped!

Right now with my first iteration of remove_item_from_list/2 with the argument order item, list (alphabetical),
we cannot pipe a list into the function ... 🙄

Going to update the argument order quickly. BRB. 🧑‍💻

[nelsonic]

To be clear: I prefer the arguments to be alphabetic for OCD reasons ... 🔤
But if we're building a library that is Useful to other people, 💭
.then it makes sense to be consistent with the standard library ... 👌

[nelsonic]

Updated:

useful/lib/useful.ex

Lines 142 to 149 in a2c5135

	def remove_item_from_list(list, item) do
	if Enum.member?(list, item) do
	i = Enum.find_index(list, fn it -> it == item end)
	List.delete_at(list, i)
	else
	list
	end
	end