Display lat, lng, alt in the inner marker popup

[luisfio1]

Would it be possible to change the popup string to show the lat, lng and altitude of my position?

These are variables that I have defined in my script.

lc = L.control.myLocate({ locateOptions: { enableHighAccuracy: true } }).addTo(map);

map.on('locationfound', function (evt) {

LatLng = evt.latlng;
longitud= LatLng.lng;
latitud= LatLng.lat;
altitud= evt.altitude;	
currentPos = [latitud, longitud];