Reading · Ben Koshy · RSS Amplifier

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I saw this in an open source project (pagy):

module Car
	def drive
		puts "\nI'm a racing car passing by
			  \nLike Lady Godiva
			  \nI'm gonna go, go, go
			  \nThere's no stopping me"
	end
end
class Toyota
	include Car
end

What do I have to do to the Car module in order to make this possible.

Car.drive

The easy answer is to add in the module_function method.

module Car
	module_function
	def drive
		puts "\nI'm a racing car passing by
			  \nLike Lady Godiva
			  \nI'm gonna go, go, go
			  \nThere's no stopping me"
	end
end
class Toyota
	include Car
end
Car.drive # this should work now.

For more info, check out the documentation on module_function.

What is `module_function` all about?

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