Boolean prefix (ARCH6007)

Key ruby.naming.predicate-question-mark · Severity info · Category naming

Methods that return a boolean should end with a question mark in Ruby (active?), which makes conditionals read naturally. Predicate methods without the interrogative form make conditions read poorly.

Incorrect

class Account
  def active
    @status == :active
  end
end

Correct

class Account
  def active?
    @status == :active
  end
end

Fix

End boolean methods with a question mark (active?); an is_/has_ prefix is also acceptable for predicates.