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method_chaining.rb

saasbook
May 1st, 2012
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  1. # downcase and split are defined in String class
  2. words = IO.read("file").
  3.   split(/\W+/).
  4.   select { |s| s =~ /^[aeiou]/i }.
  5.   map { |s| s.downcase }.
  6.   uniq.
  7.   sort
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