index.html
<!DOCTYPE html>
<html>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Map - Get map's status</title>
<style type="text/css">
html,body{margin:0px;height:100%;width:100%}
.container{width:100%;height:100%}
#status{position:fixed;left:0px;top:0px;width:100%;height:140px;overflow:hidden}
#status div{background-color:rgba(13, 13, 13, 0.5);width:100%;height:100%;padding:10px 10px 10px 10px;font:13px bold sans-serif;color:#fff}
</style>
<link rel="stylesheet" href="https://unpkg.com/maptalks/dist/maptalks.css">
<script type="text/javascript" src="https://unpkg.com/maptalks/dist/maptalks.min.js"></script>
<body>
<div id="map" class="container"></div>
<div id="status"></div>
<script>
var map = new maptalks.Map('map', {
center: [-0.113049,51.498568],
zoom: 14,
centerCross: true,
baseLayer: new maptalks.TileLayer('base', {
urlTemplate: 'https://{s}.basemaps.cartocdn.com/light_all/{z}/{x}/{y}.png',
subdomains: ["a","b","c","d"],
attribution: '© <a href="http://osm.org">OpenStreetMap</a> contributors, © <a href="https://carto.com/">CARTO</a>'
})
});
map.on('zoomend moving moveend', getStatus);
getStatus();
function getStatus() {
var extent = map.getExtent(),
ex = [
'{',
'xmin:' + extent.xmin.toFixed(5),
', ymin:' + extent.ymin.toFixed(5),
', xmax:' + extent.xmax.toFixed(5),
', ymax:' + extent.xmax.toFixed(5),
'}'
].join('');
var center = map.getCenter();
var mapStatus = [
'Center : [' + [center.x.toFixed(5), center.y.toFixed(5)].join() + ']',
'Extent : ' + ex,
'Size : ' + map.getSize().toArray().join(),
'Zoom : ' + map.getZoom(),
'MinZoom : ' + map.getMinZoom(),
'MaxZoom : ' + map.getMaxZoom(),
'Projection : ' + map.getProjection().code
];
document.getElementById('status').innerHTML = '<div>' + mapStatus.join('<br>') + '</div>';
}
</script>
</body>
</html>