JSFiddle - React, Tailwind, and code Playground

HTML

<video id="video" controls="" autoplay="" heigth="300" width="300" name="media"><source src="" type="video/mp4"></video>

JavaScript

urls = ["https://mp4-b.udemycdn.com/2017-11-19_04-24-16-427eab9652298b15c218e30fe7023a29/WebHD_720p.mp4?secure=yahHc0HhRqTX4bJq8Ywh-w%3D%3D%2C1607745148",
"https://mp4-b.udemycdn.com/2014-08-31_05-13-50-281d90befa2c6812e2ec0bafe47cdd3c/WebHD_720p.mp4?secure=wg2_RBCDem8UEcHMov2GNg%3D%3D%2C1607745157"
];
var i = 0;
setInterval(function(){
	var date = new Date();
  if(date.getSeconds() % 10 == 0){
  	var video = document.getElementById("video");
		video.src = urls[i++ % 2];
		video.play();
  }
  console.log(date.toLocaleString());
}, 1000);