Extend the Fixnum class with some helper methods to make manipulating dates easier : Fixnum class « Number « Ruby

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Ruby » Number » Fixnum class   Extend the Fixnum class with some helper methods to make manipulating dates easier class Fixnum   def seconds     self   end   def minutes     self * 60   end   def hours     self * 60 * 60   end   def days     self * 60 * 60 * 24   end end puts Time.now puts Time.now + 10.minutes puts Time.now + 16.hours puts Time.now - 7.days   Related examples in the same category 1.  Fixnum literal value 2.  Normal-looking math equations when you use operator methods, such as + 3.  Output the modules where Fixnum lives 4.  find out the ancestors of Fixnum 5.  Raise ArgumentError from method

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