<div id="map"></div>
<script>
    $("#map").kendoMap({
        layers: [{
            type: "marker",
            dataSource: [
                { latlng: [42.3601, -71.0589], name: "Boston" },
                { latlng: [40.7128, -74.0060], name: "New York" }
            ],
            locationField: "latlng"
        }]
    });

    var map = $("#map").data("kendoMap");
    var markerLayer = map.layers[0];
    
    // Hide the layer first
    markerLayer.hide();
    console.log("Marker layer hidden");
    
    // Show the marker layer
    setTimeout(() => {
        markerLayer.show();
        console.log("Marker layer is now visible");
    }, 1000);
</script>