iex(1)> Enum.join( ["I","am","tomohiko."], " " ) # 空白で結合する "I am tomohiko." iex(2)> Enum.join( ["I","am","tomohiko."], "-" ) # ハイフンで結合する "I-am-tomohiko." iex(3)> Enum.join( ["I","am","tomohiko."]) # ただ結合する "Iamtomohiko."