Is Marker
The isMarker function is used to check if the provided value is a Marker. It takes any as the first argument and returns a boolean.
Why do I need this function?
If you want to check if something is a Marker, you can use this function.
Example
typescript
import { isMarker } from 'leaflet-markercluster-utils';
const cluster = L.markerClusterGroup();
const marker1 = L.marker([0, 0]);
const marker2 = L.marker([0, 0]);
cluster.addLayer(marker1);
cluster.addLayer(marker2);
map.addLayer(cluster);
document.querySelector('#is-cluster').addEventListener('click', () => {
console.log(isMarker(marker1)); // true
console.log(isMarker(cluster)); // false
});