如何使用自动完成的谷歌地图没有地图,但只自动建议的地方?

我有一个输入表单,用户应该能够看到与他/她输入的单词相关的地方的建议。我通过谷歌搜索找到的解决方案是使用谷歌地图自动完成。但问题是,我根本不需要地图。我所需要的是当用户在我自己的输入框中键入内容时提供建议的函数。有人能帮我找出这个谷歌地图代码的哪一部分,我应该只用来得到我需要的吗?

<script>
  // This example requires the Places library. Include the libraries=places
  // parameter when you first load the API. For example:
  // <script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&libraries=places">

  function initMap() {
    var map = new google.maps.Map(document.getElementById('map'), {
      center: {lat: -33.8688, lng: 151.2195},
      zoom: 13
    });
    var card = document.getElementById('pac-card');
    var input = document.getElementById('pac-input');
    var types = document.getElementById('type-selector');
    var strictBounds = document.getElementById('strict-bounds-selector');

    map.controls[google.maps.ControlPosition.TOP_RIGHT].push(card);

    var autocomplete = new google.maps.places.Autocomplete(input);

    // Bind the map's bounds (viewport) property to the autocomplete object,
    // so that the autocomplete requests use the current map bounds for the
    // bounds option in the request.
    autocomplete.bindTo('bounds', map);

    var infowindow = new google.maps.InfoWindow();
    var infowindowContent = document.getElementById('infowindow-content');
    infowindow.setContent(infowindowContent);
    var marker = new google.maps.Marker({
      map: map,
      anchorPoint: new google.maps.Point(0, -29)
    });

    autocomplete.addListener('place_changed', function() {
      infowindow.close();
      marker.setVisible(false);
      var place = autocomplete.getPlace();
      if (!place.geometry) {
        // User entered the name of a Place that was not suggested and
        // pressed the Enter key, or the Place Details request failed.
        window.alert("No details available for input: '" + place.name + "'");
        return;
      }

      // If the place has a geometry, then present it on a map.
      if (place.geometry.viewport) {
        map.fitBounds(place.geometry.viewport);
      } else {
        map.setCenter(place.geometry.location);
        map.setZoom(17);  // Why 17? Because it looks good.
      }
      marker.setPosition(place.geometry.location);
      marker.setVisible(true);

      var address = '';
      if (place.address_components) {
        address = [
          (place.address_components[0] && place.address_components[0].short_name || ''),
          (place.address_components[1] && place.address_components[1].short_name || ''),
          (place.address_components[2] && place.address_components[2].short_name || '')
        ].join(' ');
      }

      infowindowContent.children['place-icon'].src = place.icon;
      infowindowContent.children['place-name'].textContent = place.name;
      infowindowContent.children['place-address'].textContent = address;
      infowindow.open(map, marker);
    });

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

    setupClickListener('changetype-all', []);
    setupClickListener('changetype-address', ['address']);
    setupClickListener('changetype-establishment', ['establishment']);
    setupClickListener('changetype-geocode', ['geocode']);

    document.getElementById('use-strict-bounds')
        .addEventListener('click', function() {
          console.log('Checkbox clicked! New state=' + this.checked);
          autocomplete.setOptions({strictBounds: this.checked});
        });
  }
</script>
<script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&libraries=places&callback=initMap"
    async defer></script>

上面的代码段来自 this url 以下:

https://developers.google.com/maps/documentation/javascript/examples/places-autocomplete