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Create a draggable Marker

Drag the marker to a new location on a map and populate its coordinates in a display.

<!DOCTYPE html>
<html lang="en">
<head>
    <title>Create a draggable Marker</title>
    <meta property="og:description" content="Drag the marker to a new location on a map and populate its coordinates in a display." />
    <meta charset='utf-8'>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="https://unpkg.com/[email protected]/dist/trackasia-gl.css" />
    <script src="https://unpkg.com/[email protected]/dist/trackasia-gl.js"></script>
    <style>
        body { margin: 0; padding: 0; }
        html, body, #map { height: 100%; }
    </style>
</head>
<body>
    <style>
    .coordinates {
        background: rgba(0, 0, 0, 0.5);
        color: #fff;
        position: absolute;
        bottom: 40px;
        left: 10px;
        padding: 5px 10px;
        margin: 0;
        font-size: 11px;
        line-height: 18px;
        border-radius: 3px;
        display: none;
    }
</style>

<div id="map"></div>
<pre id="coordinates" class="coordinates"></pre>

<script>
    const coordinates = document.getElementById('coordinates');
    const map = new trackasiagl.Map({
        container: 'map',
        style: 'https://maps.track-asia.com/styles/v1/streets.json?key=public_key',
        center: {"lat":10.762622,"lng":106.660172},
        zoom: 4
    });

    const marker = new trackasiagl.Marker({draggable: true})
        .setLngLat(map.getCenter())
        .addTo(map);

    function onDragEnd() {
        const lngLat = marker.getLngLat();
        coordinates.style.display = 'block';
        coordinates.innerHTML =
            `Longitude: ${lngLat.lng}<br />Latitude: ${lngLat.lat}`;
    }

    marker.on('dragend', onDragEnd);
</script>

</body>
</html>