Ruby each with else

each-with-else.rb

def for_each(items, do_this, options = { else: -> {} })
  unless items.empty?
    items.each &do_this
  else
    options[:else].call
  end
end

items = [1,2,3]
for_each items, ->(i) {
  p i
}, else: -> {
  p 'empty'
}