Calculate age in Rails with a birthday

January 28, 2008

 
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This is one of those random things that shows up every now and then.

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#this will approximate the user's age
  def calculate_age(birthday)
    Date.today.year - birthday.to_date.year
  end
 
#this is exact
def calculate_age(birthday)
  (Date.today - birthday).to_i / 365
end
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