Ruby Different way of sorting array!

new_sort.rb

nums = [5,4,3,2,1,1]
a = Array.new
until nums.empty?
  min = nums.min
  step = nums.count(min)
  if step > 1
  step.to_i.times do
    a << min
  end
  nums.delete(min)
  else
    a << nums.min 
    nums.delete(min) 
  end
end
p a