class ActiveSupport::StringInquirer

vehicle.bike? # => false
vehicle.car? # => true
vehicle = ActiveSupport::StringInquirer.new(‘car’)
== Instantiating a new StringInquirer
Rails.env.production?
you can call this:
Rails.env == ‘production’
in a StringInquirer object, so instead of calling this:
for equality. The value returned by Rails.env is wrapped
Wrapping a string in this class gives you a prettier way to test
= String Inquirer

def method_missing(method_name, *arguments) 

def method_missing(method_name, *arguments)
  if method_name.end_with?("?")
    self == method_name[0..-2]
  else
    super
  end
end

def respond_to_missing?(method_name, include_private = false) 

def respond_to_missing?(method_name, include_private = false)
  method_name.end_with?("?") || super
end