JSFiddle - React, Tailwind, and code Playground
HTML
<button>Src</button>
<video id="video" width="320" height="240" controls>
</video>
JavaScript
var video = document.getElementById('video');
video.addEventListener('click',function(){
video.play();
},false);
$('button').click(function(){
$('video').html('<source src="http://www.w3schools.com/html/movie.mp4">'+
'Your browser does not support the video tag.');
$('video').click();
});