I’m current learning Elixir by the book Elixir in Action 2nd Edition. On chapter 3 at Stream functions exercises i’ve solved them a bit different from the original repository.
Problem: Get the longest line length of a file
Book resoluiton:
def longest_line_length!(path) do
path
|> Stream.map(&String.replace(&1, "\n", ""))
|> Stream.map(&String.length/1)
|> Enum.max()
end
My resolution:
def longest_line_length!(path) do
File.stream!(path)
|> Stream.map(&String.replace(&1, "\n", ""))
|> Stream.map(&String.length(&1))
|> Enum.max()
end
Is there some fundamental difference between Stream.map(&String.length/1) and Stream.map(&String.length(&1)) ?
Or it is just a style preference?
Personally I think it’s more clear to use &1 even if it’s not necessary. Maybe it is just because I’m still getting used with the language. Any thoughts?
