visibility_control

🔒 Control Method Visibility

Ruby supports public, protected, and private keywords to limit method access. By default, methods are public. Use private to restrict usage to the defining class only. protected allows access from the same class or subclasses.

class Person
  def public_info
    'public'
  end

  private

  def secret_info
    'secret'
  end
end

puts Person.new.public_info  # => 'public'
# Person.new.secret_info      # => NoMethodError