Comparable module can provide the other basic comparison operators and between?. : Comparable « Collections « Ruby

1. Ruby
2. Collections
3. Comparable

Comparable module can provide the other basic comparison operators and between?.

class Song
  include Comparable

  attr_accessor :length
  def <=>(other)
    @length <=> other.length
  end

  def initialize(song_name, length)
    @song_name = song_name

    @length = length
  end

end

a = Song.new('Rock around the clock', 143)
b = Song.new('Bohemian Rhapsody', 544)
c = Song.new('Minute Waltz', 60)
# Here are the results of including the Comparable module:
a < b
b >= c
c > a
a.between?(b,c)

 

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