module Hamster::List
def join(sep = "")
def join(sep = "") return "" if empty? sep = sep.to_s tail.reduce(head.to_s.dup) { |result, item| result << sep << item.to_s } end
def join(sep = "") return "" if empty? sep = sep.to_s tail.reduce(head.to_s.dup) { |result, item| result << sep << item.to_s } end