pipefall/index.js

(function () {
  "use strict";

  const pipefall = document.getElementById("pipefall");
  const now = document.getElementById("play-now");

  const play = () => {
    console.log("pipefall!");
    pipefall.play();
  };

  now.addEventListener("click", play);

  for (let pipe of document.querySelectorAll(".pipe")) {
    pipe.addEventListener("click", play);
  }
})();