if (typeof navigator.geolocation.getCurrentPosition === 'function') {
	navigator.geolocation.getCurrentPosition(
		successCallback,
		errorCallback,
		options
	);
}

position.coords
position.timestamp
 
// position.coords
coords.accuracy;
coords.altitude;
coords.altitudeAccuracy;
coords.heading;
coords.latitude;
coords.longitude;
coords.speed;

positionError.code
 
case: 1
user do not share
 
case: 2
unavailable
 
case: 3
timeout
 
case: 0
unknown

interface PositionOptions {
	attribute boolean enableHighAccuracy;
	attribute long timeout;
	attribute long maximumAge;
};