This lab covers the basics for creating a basic starter Esri-Leaflet mapping application. The starter map simply loads a default base map, centers and zooms it in. If you are new to Esri-Leafet you can get the examples and API documentation here.
Copy and paste the code below into jsbin.com. You can also click here.
<html>
<head>
<meta charset=utf-8 />
<title>Esri-Leaflet Starter App</title>
<meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' />
<!-- Load Leaflet from CDN-->
<link rel="stylesheet" href="https://unpkg.com/leaflet@1.0.0/dist/leaflet.css" />
<script src="https://unpkg.com/leaflet@1.0.0/dist/leaflet-src.js"></script>
<!-- Load Esri Leaflet from CDN -->
<script src="https://unpkg.com/esri-leaflet@2.0.3"></script>
<style>
body {margin:0;padding:0;}
#map {position: absolute;top:0;bottom:0;right:0;left:0;}
</style>
</head>
<body>
<div id="map"></div>
<script type='text/javascript'>
var map = L.map('map').setView([45.533, -122.657], 12);
L.esri.basemapLayer('DarkGray').addTo(map);
</script>
</body>
</html>
Run the app and you should see a dark gray map centered on Portland, Oregon.
Topographic or Gray.