Lat/Lng Object Literal

Sample code for Google Maps Platform JavaScript API author(s): Justin Poehnelt

by andypotanin

HTML

<!doctype html>
<!--
 @license
 Copyright 2019 Google LLC. All Rights Reserved.
 SPDX-License-Identifier: Apache-2.0
-->
<html>
  <head>
    <title>Lat/Lng Object Literal</title>

    <!-- jsFiddle will insert css and js -->
  </head>
  <body>
    <div id="map"></div>

    <!-- 
      The `defer` attribute causes the script to execute after the full HTML
      document has been parsed. For non-blocking uses, avoiding race conditions,
      and consistent behavior across browsers, consider loading using Promises. See
      https://developers.google.com/maps/documentation/javascript/load-maps-js-api
      for more information.
      -->
    <script
      src="https://maps.googleapis.com/maps/api/js?key=AIzaSyB41DRUbKWJHPxaFjMAwdrzWzbVKartNGg&callback=initMap&v=weekly"
      defer
    ></script>
  </body>
</html>

CSS

/**
 * @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * SPDX-License-Identifier: Apache-2.0
 */
/* 
 * Always set the map height explicitly to define the size of the div element
 * that contains the map. 
 */
#map {
  height: 100%;
}

/* 
 * Optional: Makes the sample page fill the window. 
 */
html,
body {
  height: 100%;
  margin: 0;
  padding: 0;
}

JavaScript

/**
 * @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * SPDX-License-Identifier: Apache-2.0
 */
// In this example, we center the map, and add a marker, using a LatLng object
// literal instead of a google.maps.LatLng object. LatLng object literals are
// a convenient way to add a LatLng coordinate and, in most cases, can be used
// in place of a google.maps.LatLng object.
let map;

function initMap() {
  const mapOptions = {
    zoom: 8,
    center: { lat: -34.397, lng: 150.644 },
  };

  map = new google.maps.Map(document.getElementById("map"), mapOptions);

  const marker = new google.maps.Marker({
    // The below line is equivalent to writing:
    // position: new google.maps.LatLng(-34.397, 150.644)
    position: { lat: 
    , lng: 150.644 },
    map: map,
  });
  // You can use a LatLng literal in place of a google.maps.LatLng object when
  // creating the Marker object. Once the Marker object is instantiated, its
  // position will be available as a google.maps.LatLng object. In this case,
  // we retrieve the marker's position using the
  // google.maps.LatLng.getPosition() method.
  const infowindow = new google.maps.InfoWindow({
    content: "<p>Marker Location:" + marker.getPosition() + "</p>",
  });

  google.maps.event.addListener(marker, "click", () => {
    infowindow.open(map, marker);
  });
}

window.initMap = initMap;