Credo.Check.Readability.ParenthesesInCondition (Credo v1.5.0) View Source

This check has a base priority of high and works with any version of Elixir.

Explanation

Because if and unless are macros, the preferred style is to not use parentheses around conditions.

# preferred

if valid?(username) do
  # ...
end

# NOT preferred

if( valid?(username) ) do
  # ...
end

Like all Readability issues, this one is not a technical concern. But you can improve the odds of others reading and liking your code by making it easier to follow.

Configuration parameters

There are no specific parameters for this check.

Like with all checks, general params can be applied.

Parameters can be configured via the .credo.exs config file.