জেকুয়েরী play

<!DOCTYPE html>
<html>
<script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
<body>

<video
  controls
  width="300"
  src="/videos/rain.mp4">
</video>

<script>
$(document).ready(function(){
  $("video").on("play", function(){
    alert("ভিডিও শুরু হয়েছে");
  });

});
</script>
</body>
</html>