Check if NMaps GL JS is supported | NMaps GL JS Docs

Use supported to check for NMaps GL browser support, and show an alert if the browser does not support NMaps GL.

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Check if NMaps GL JS is supported</title>
<meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no" />
<script src="https://cdn.ndrive.com/nmapsgl/v1.6.6/nmaps-gl.js"></script>
<link href="https://cdn.ndrive.com/nmapsgl/v1.6.6/nmaps-gl.css" rel="stylesheet" />
<style>
	body { margin: 0; padding: 0; }
	#map { position: absolute; top: 0; bottom: 0; width: 100%; }
</style>
</head>
<body>
<div id="map"></div>
 
<script>
	// TO MAKE THE MAP APPEAR YOU MUST ADD YOUR ACCESS TOKEN
	nmapsgl.accessToken = '<your access token here>';
	
if (!nmapsgl.supported()) {
alert('Your browser does not support NMaps GL');
} else {
const map = new nmapsgl.Map({
container: 'map',
style: 'Streets',
center: [-74.5, 40],
zoom: 9
});
}
</script>
 
</body>
</html>