fdelacruz/gist:1ec0eb8a2e896a50af58

Created August 7, 2014 00:34

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gistfile1.rb

	array = [1, 2, 3, 4]

	array.collect! do \|n\|
	n ** 2
	end

	puts array.inspect # => [1, 4, 9, 16]

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