JavaScript: Obtain a user's location using Geolocation API

location.js

/**
 * Obtain a user's location
 *
 * @see https://developers.google.com/web/fundamentals/native-hardware/user-location/obtain-location
 * @return { object } Location data
 */
window.onload = function() {

	var startPos;
	var geoOptions = { enableHighAccuracy : true };

	var geoSuccess = function( position ) {
		startPos = position;
		console.log( startPos.coords.latitude + ' ' + startPos.coords.longitude );
	};

	var geoError = function( error ) {
		console.log( 'Error occurred. Error code: ' + error.code );
		// error.code can be:
		// 0: unknown error
		// 1: permission denied
		// 2: position unavailable (error response from location provider)
		// 3: timed out
	};

	navigator.geolocation.getCurrentPosition( geoSuccess, geoError, geoOptions );
};