Get LatLng in Google Maps Places Autocomplete

HTML

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.0.1/angular.min.js"></script>
<script src="https://maps.googleapis.com/maps/api/js?sensor=false&libraries=places" type="text/javascript"></script>
<!-- CHECK ELEMENT ID also UPDATE CSS -->Please fill in:
<input id="searchTextField" type="text" size="50">
<div id="map_canvas"></div>
<div ng-controller="Ctrl">
    <input id="lat" type="text" />
    <input id="lng" type="text" />
</div>

CSS

html, body, #map_canvas {
    margin: 0;
    padding: 0;
    height: 100%;
    display: none;
    
}

JavaScript

function initialize() {
          var mapOptions = {
              center: new google.maps.LatLng(-33.8688, 151.2195),
              zoom: 13,
              mapTypeId: google.maps.MapTypeId.ROADMAP
          };
          var map = new google.maps.Map(document.getElementById('map_canvas'),
          mapOptions);

          var input = document.getElementById('searchTextField');
          var autocomplete = new google.maps.places.Autocomplete(input);



          google.maps.event.addListener(autocomplete, 'place_changed', function () {
              
              var place = autocomplete.getPlace();

              alert('lat ' + place.geometry.location.lat() + ' lng '+ place.geometry.location.lng());

              
          });

          // Sets a listener on a radio button to change the filter type on Places
          // Autocomplete.
          function setupClickListener(id, types) {
              var radioButton = document.getElementById(id);
              google.maps.event.addDomListener(radioButton, 'click', function () {
                  autocomplete.setTypes(types);
              });
          }

          setupClickListener('changetype-all', []);
          setupClickListener('changetype-establishment', ['establishment']);
          setupClickListener('changetype-geocode', ['geocode']);
      }
      google.maps.event.addDomListener(window, 'load', initialize);

      function updateTextFields(lat, lng) {
          $('#lat').val(lat);
          $('#lng').val(lng);
      }