JSFiddle - React, Tailwind, and code Playground

HTML

<video id='myVID' width="320" height="240" controls>
  <source src="http://www.w3schools.com/html/movie.mp4" type="video/mp4">
  <source src="http://www.w3schools.com/html/movie.ogg" type="video/ogg">
Your browser does not support the video tag.
</video>

JavaScript

var video = document.getElementById('myVID');

        video.onplaying = function(e) {
          /*Do things here!*/
          alert("hello video");
        }