Created
April 29, 2012 05:20
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Using the circular list
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| $ irb -r ./circularlist.rb | |
| 1.9.3-p125 :001 > cl = CircularList.new %w(a b c d e f g h) | |
| => ["a", "b", "c", "d", "e", "f", "g", "h"] | |
| 1.9.3-p125 :002 > cl.current | |
| => "a" | |
| 1.9.3-p125 :004 > cl.next | |
| => "b" | |
| 1.9.3-p125 :005 > cl.previous | |
| => "a" | |
| 1.9.3-p125 :007 > cl.next 3 | |
| => "d" | |
| 1.9.3-p125 :009 > cl.previous 5 | |
| => "g" | |
| 1.9.3-p125 :010 > |
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