Leaflet.JS marker goes on coords on opposite map

Question

This question already has answers here: question from:https://stackoverflow.com/questions/65648924/leaflet-js-marker-goes-on-coords-on-opposite-map

Answer 1

You need to add 360 to the Lng of the wrong placed markers.

So the marker should look like: L.marker([65.585848, 188.988878], {icon: presentIcon}).addTo(mymap);

With this code you can chage all existing markers. I take the break at -149 lng to swap the markers to the other side:

map.eachLayer((layer) => {
    if (layer instanceof L.Marker) {
        if (layer.getLatLng().lng <= -149) {
            var latlng = layer.getLatLng();
            latlng.lng = latlng.lng + 360;
            layer.setLatLng(latlng);
        }
    }
});