JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="console"></div>

CSS

body {
	font-family: arial;
	font-size: 14px;
}
.console {
	font-family: monospace;
	white-space: pre;
}

JavaScript

function console_log(data) {
	console.log(data)
	var data_str = String(data);
	var $div = $('<div></div>');
	$div.append(data_str);
	$('.console').append($div);
}
$(function(){
	var constraints = { audio: true, video:false }
	//---
	console_log('navigator.mediaDevices...');
	console_log(navigator.mediaDevices);
	//---
	navigator.mediaDevices.getUserMedia(constraints).then(function(stream) {
		console_log('---');
		console_log('# TEST # Inside Success Callback');
	}).catch(function(err) {
		console_log('---');
		console_log('# TEST # Inside Error Callback');
		console_log(err);
	});
});