Basics
This check is disabled by default.
Learn how to enable it via .credo.exs.
This check has a base priority of normal and works with any version of Elixir.
Explanation
Enum.map(fn {k, v} -> ... end) |> Enum.into(%{}) should be Map.new/2.
# bad
list
|> Enum.map(fn {k, v} -> {k, transform(v)} end)
|> Enum.into(%{})
# good
Map.new(list, fn {k, v} -> {k, transform(v)} end)Credo's Refactor.MapInto is disabled for Elixir >= 1.8 (performance
was fixed), but Map.new/2 is still clearer and more intentional.
Check-Specific Parameters
There are no specific parameters for this check.
General Parameters
Like with all checks, general params can be applied.
Parameters can be configured via the .credo.exs config file.