Play all audios on wiki page

(() => {
  const audios = $('.sm2_button');

  function playAudio(index) {
     if (index === audios.length) return;

     const audio = new Audio();

     audio.src = audios.eq(index).attr('href');

     audio.addEventListener('loadeddata', () => {
       audio.play();
     });

     audio.addEventListener('ended', () => {
       setTimeout(() => playAudio(index + 2), 2000);
     });
  }

  playAudio(0);
})();