ruby bubble sort

gistfile1.txt

def bubble(arr)
  n = arr.length-1
  loop do
    swapped = false
    (1..n).each do |i|
      if arr[i-1] > arr[i] then
        remember = arr[i]
        arr[i] = arr[i-1]
        arr[i-1] = remember
        swapped = true
      end
    end  
    print arr
    puts
    break if swapped == false
  end
end

bubble([4,5,1,3,6,7,1,3])