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Attach a popup to a marker instance

Attach a popup to a marker and display it on click.

<!DOCTYPE html>
<html lang="en">
<head>
    <title>Attach a popup to a marker instance</title>
    <meta property="og:description" content="Attach a popup to a marker and display it on click." />
    <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>
    #marker {
        background-image: url('https://docs.track-asia.com/assets/Opera_Ho_Chi_Minh.jpeg');
        background-size: cover;
        width: 50px;
        height: 50px;
        border-radius: 50%;
        cursor: pointer;
    }

    .trackasiagl-popup {
        max-width: 200px;
    }
</style>

<div id="map"></div>

<script>
    const opera = [106.70327,10.776694];
    const map = new trackasiagl.Map({
        container: 'map',
        style: 'https://maps.track-asia.com/styles/v2/streets.json?key=public_key',
        center: opera,
        zoom: 16
    });

    // create the popup
    const popup = new trackasiagl.Popup({ offset: 25 }).setText(
        'The Opera Ho Chi Minh City, by Diego Delso, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=30088100'
    );

    // create DOM element for the marker
    const el = document.createElement('div');
    el.id = 'marker';

    // create the marker
    new trackasiagl.Marker({element: el})
        .setLngLat(opera)
        .setPopup(popup) // sets a popup on this marker
        .addTo(map);
</script>

</body>
</html>