Add multiple markers in leaflet.js v1 by d3noob

index.html

<!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>

    <script src="https://unpkg.com/leaflet@1.6.0/dist/leaflet.js"
            integrity="sha512-gZwIG9x3wUXg2hdXF6+rVkLF/0Vi9U8D2Ntg4Ga5I5BZpVkVxlJWbSQtXPSiUTtC0TjtGOmxa1AJPuV0CPthew=="
            crossorigin=""></script>
    <script>

	var planes = [
		["7C6B07",-40.99497,174.50808],
		["7C6B38",-41.30269,173.63696],
		["7C6CA1",-41.49413,173.5421],
		["7C6CA2",-40.98585,174.50659],
		["C81D9D",-40.93163,173.81726],
		["C82009",-41.5183,174.78081],
		["C82081",-41.42079,173.5783],
		["C820AB",-42.08414,173.96632],
		["C820B6",-41.51285,173.53274]
		];

        var map = L.map('map').setView([-41.3058, 174.82082], 8);
        mapLink = 
            '<a href="//openstreetmap.org">OpenStreetMap</a>';
        L.tileLayer(
            '//{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
            attribution: '&copy; ' + mapLink + ' Contributors',
            maxZoom: 18,
            }).addTo(map);

		for (var i = 0; i < planes.length; i++) {
			marker = new L.marker([planes[i][1],planes[i][2]])
				.bindPopup(planes[i][0])
				.addTo(map);
		}
               
    </script>
</body>
</html>