submit-google-map.js

			// Create the autocomplete object, restricting the search predictions to
			// geographical location types.
			var autocomplete = new google.maps.places.Autocomplete(
				document.getElementById(addressField), {types: ['geocode']});

			// Avoid paying for data that you don't need by restricting the set of
			// place fields that are returned to just the address components.
			autocomplete.setFields(['geometry']);

			// When the user selects an address from the drop-down, populate the
			// address fields in the form.
			autocomplete.addListener('place_changed', () => {
				var place = autocomplete.getPlace();
				var lat = place.geometry.location.lat(),
					lng = place.geometry.location.lng();

				that.container.find(".map-coordinate").val(lat + ',' + lng );
				var location = new window.google.maps.LatLng(lat, lng);
				that.map.setCenter(location);
				// Drop the Marker
				setTimeout(function(){
					that.marker.setValues({
						position: location,
						animation: window.google.maps.Animation.DROP
					});
				}, 0);
			});

			// Bias the autocomplete object to the user's geographical location,
           // as supplied by the browser's 'navigator.geolocation' object.
			document.getElementById(addressField).addEventListener('focus', (event) => {
				if (navigator.geolocation) {
					navigator.geolocation.getCurrentPosition(function(position) {
						var geolocation = {
							lat: position.coords.latitude,
							lng: position.coords.longitude
						};
						var circle = new google.maps.Circle(
							{center: geolocation, radius: position.coords.accuracy});
						autocomplete.setBounds(circle.getBounds());
					});
				}
			});