gus

goose.rb

def some_function(a, b, &block)
  v = []
  (a .. b).each do |c|
    v << block.call(a, c)
  end
  v
end

some_function(0, 10) do |a, c|
  [c, a]
end

=> [[0, 0], [1, 0], [2, 0], [3, 0], [4, 0], [5, 0], [6, 0], [7, 0], [8, 0], [9, 0], [10, 0]]