<ons-gesture-detector>
  <div id="detect-area" style="width: 100px; height: 100px;">
    Swipe Here
  </div>
</ons-gesture-detector>
<script>
  document.addEventListener('swipeleft', function(event) {
    if (event.target.matches('#detect-area')) {
      console.log('Swipe left is detected.');
    }
  });
</script>

• ジェスチャー操作の検知