Sort

gistfile1.txt

array_a=[1,4]
array_b=[2,3]
ary = [array_a,array_b]
a = ary[0]
b = ary[1]

sorted = []

until ary.empty? do
  if a.empty?
    sorted << b.shift
  elsif b.empty?
    sorted << a.shift
  elsif a.first < b.first
    sorted << a.shift
  else
    sorted << b.shift
  end
end