Ruby - Extend Fixnum to extend number

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Introduction

You can extend the Fixnum class with some helper methods to make manipulating dates easier:

Demo

class Fixnum 
  def seconds #  w w w  .j a  v  a  2 s .c o  m
    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

Result