Multiple tile layers in leaflet.js v1

An example of using leaflet.js with multiple tile layers.

This graph is part of the code samples for the update to the book Leaflet Tips and Tricks to version 1 of leaflet.js.

<!DOCTYPE html>
<html>
<head>
    <title>Simple Leaflet Map</title>
    <meta charset="utf-8" />
    <link rel="stylesheet" href="https://unpkg.com/leaflet@1.6.0/dist/leaflet.css"
          integrity="sha512-xwE/Az9zrjBIphAcBb3F6JVqxf46+CDLwfLMHloNu6KEQCAWi6HcDUbeOfBIptF7tcCzusKFjFw2yuvEpDL9wQ=="
          crossorigin=""/></head>
<body>
    <div id="map" style="width: 600px; height: 400px"></div>

var map = L.map('map', {
			    layers: [osmMap] // only add one!
		    })
        .setView([-41.2858, 174.78682], 14);

var baseLayers = {
			    "OSM Mapnik": osmMap,
			    "Topogrophy": otmMap
		    };

L.control.layers(baseLayers).addTo(map);

</script>
</body>
</html>