How to extract users longitude and latitude in real time using leaflet - mobile

Question

I am using Leaflet in a cross-platform mobile app.
I want the user to see his/her movement on the map in real time.
I also want to hold their longitude and latitude separately as global variables for I need this information to make a calculation later on.
Below is what I have so far:
map.locate({
watchPosition:true,
maxZoom:16
});
function onLocationFound(e)
{
var radius = e.accuracy / 2;
L.circle(e.latlng, radius,
{
color: 'red',
fillColor: '#f03',
fillOpacity: 0.5,
radius: 400
}).addTo(map);
}
map.on('locationfound', onLocationFound);
I believe the "watchPosition:true" enables the map to keep on watching the user.
I just could not figure out how to extract the longitude and latitude information .
Thanks in advance

Answer 1

The Leaflet map.locate option is just watch:
If true, starts continuous watching of location changes (instead of detecting it once) using W3C watchPosition method.

Answer 2

function onLocationFound(e)
{
var radius = e.accuracy / 2;
userLat = e.latlng.lat;
userLng = e.latlng.lng;
movingCircle.setLatLng(e.latlng);
movingCircle.redraw();
}
var userLocation = map.locate
({
watch:true,
maxZoom:16,
enableHighAccuracy: true
});
var userLat;
var userLng;
enter code here
var movingCircle = L.circle([0,0], 20,
{color: 'red',
fillColor: '#f03',
fillOpacity: 0.5,
draggable: true }).addTo(map);