samples/icon.html

<!DOCTYPE html><html lang="ja">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link rel="apple-touch-icon" href="apple-touch-icon.png" />

<link rel="stylesheet" href="https://unpkg.com/leaflet@1.4.0/dist/leaflet.css" integrity="sha512-puBpdR0798OZvTTbP4A8Ix/l+A4dHDD0DGqYW6RQ+9jxkRFclaxxQb/SJAWZfWAkuyeQUytO7+7N4QKrDh+drA==" crossorigin=""/>
<script src="https://unpkg.com/leaflet@1.4.0/dist/leaflet.js" integrity="sha512-QVftwZFqvtRNi0ZyCtsznlKSWOStnDORoefr1enyq5mVL4tmKB3S/EnC3rRJcxCPavG10IcrVGSmPh6Qw5lwrg==" crossorigin=""></script>

<link rel="stylesheet" href="leaflet.css"/>
<script src="leaflet.js"></script>
<script>"use strict"

window.onload = function() {
	var map = L.map('mapid')

	L.tileLayer("https://cyberjapandata.gsi.go.jp/xyz/std/{z}/{x}/{y}.png", {
		attribution: '<a href="https://maps.gsi.go.jp/development/ichiran.html">国土地理院</a>"',
		maxZoom: 18,
	}).addTo(map);

	var ll = [ 35.943560,136.188917 ] // 鯖江駅
	var zoom = 13
	map.setView(ll, zoom)

	// アイコン
	var layer = L.layerGroup()
    layer.addTo(map)
    layer.addIcon = function(lat, lng, name, iconurl, iconsize, callback) {
		var marker = null
		if (iconurl) {
			icon = L.icon({
	            iconUrl: iconurl,
	            iconSize: [ iconsize, iconsize ],
	            iconAnchor: [ iconsize / 2, iconsize / 5 ]
			})
			marker = L.marker([ lat, lng ], {
	            title : name,
	            icon : icon,
	        })
		} else {
			marker = L.marker([ lat, lng ], { title: name })
		}
        marker.bindPopup(
            "<h2>" + name + "</h2>",
            {
                maxWidth: 500
            }
        );
        marker.on("click", function() {
			if (callback)
	            callback(name);
        });
        this.addLayer(marker);
        return marker
	}
	
	layer.addIcon(35.943560, 136.188917, "鯖江駅")
}
</script>
<style>
body {
	margin: 0;
	font-family: sans-serif;
}
#mapid {
	height: 60vh;
}
</style>

</Head>
<body>
<h1>Leaflet x 地理院地図</h1>
<div id="mapid"></div>
</body>
</html>