Video element in HTML

<video id="myVideo" controls>
  <source src="video1.mp4" type="video/mp4">
  <source src="video1.webm" type="video/webm">
</video>

Playlist

You can use below code to make playlist

var video = document.getElementById("myVideo");
var playlist = ["video1.mp4", "video2.mp4", "video3.mp4"];
var currentVideoIndex = 0;

video.addEventListener('ended', function() {
  currentVideoIndex++;
  if (currentVideoIndex == playlist.length) {
    currentVideoIndex = 0;
  }
  video.src = playlist[currentVideoIndex];
  video.play();
});