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sheldonh/aget_at.rb

Created March 2, 2015 12:23
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age_at.rb
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aget_at.rb
#!/usr/bin/env ruby
#
# Taken from http://stackoverflow.com/questions/819263/2357790#2357790
def age_at(dob, date)
date.year - dob.year - ((date.month > dob.month || (date.month == dob.month && date.day >= dob.day)) ? 0 : 1)
end
require "date"
puts age_at(Date.parse("1974-10-18"), Date.parse(ARGV[0]))
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