#Google #Maps #api constantly update user location on the map

gistfile1.js

/*global gmap */
        function getUserLocation(map) {
            if (navigator.geolocation) {
                navigator.geolocation.getCurrentPosition(function (position) {
                    var point = new google.maps.LatLng(position.coords.latitude,
                        position.coords.longitude);

                    if (typeof getUserLocation.user_marker == 'undefined') {
                        getUserLocation.user_marker = new google.maps.Marker({
                            position:point,
                            map:gmap,
                            icon:'person.png'
                        });
                        getUserLocation.user_marker_window = new google.maps.InfoWindow({
                            content:'You'
                        });

                        google.maps.event.addListener(getUserLocation.user_marker, 'click', function () {
                            getUserLocation.user_marker_window.open(map, getUserLocation.user_marker);
                        });
                    }
                    getUserLocation.user_marker.setPosition(point);
                });
            }
        }

        if (navigator.geolocation) {
            getUserLocation(gmap);
            setInterval(function () {
                getUserLocation(gmap);
            }, 5000);
        }

How to use it in node.js file?