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Lat/Lng Object Literal

This example demonstrates using a LatLng object literal instead of a google.maps.LatLng object, to center the map and add a marker. 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.

Read the documentation.

TypeScript

// 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: google.maps.Map;

function initMap(): void {
  const mapOptions = {
    zoom: 8,
    center: { lat: -34.397, lng: 150.644 }
  };
  map = new google.maps.Map(
    document.getElementById("map") as HTMLElement,
    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: -34.397, 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);
  });
}

JavaScript

// 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: -34.397, 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);
  });
}

CSS

/* 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;
}

HTML

<!DOCTYPE html>
<html>
  <head>
    <title>Lat/Lng Object Literal</title>
    <script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>
    <script
      src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initMap&libraries=&v=weekly"
      defer
    ></script>
    <link rel="stylesheet" type="text/css" href="./style.css" />
    <script src="./app.js"></script>
  </head>
  <body>
    <div id="map"></div>
  </body>
</html>

All

<!DOCTYPE html>
<html>
  <head>
    <title>Lat/Lng Object Literal</title>
    <script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>
    <script
      src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initMap&libraries=&v=weekly"
      defer
    ></script>
    <style type="text/css">
      /* 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;
      }
    </style>
    <script>
      "use strict";

      // 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: -34.397,
            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);
        });
      }
    </script>
  </head>
  <body>
    <div id="map"></div>
  </body>
</html>
"use strict"; // 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: -34.397, 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); }); }
/* 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; }
<!DOCTYPE html> <html> <head> <title>Lat/Lng Object Literal</title> <script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script> <script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyBIwzALxUPNbatRBj3Xi1Uhp0fFzwWNBkE&callback=initMap&libraries=&v=weekly" defer ></script> <!-- jsFiddle will insert css and js --> </head> <body> <div id="map"></div> </body> </html>

Create a starter application from sample

A skeleton starter application using TypeScript, Webpack, and Babel can be generated from this sample using one of the methods below.

Run Locally

Node.js is required to run this sample locally. Follow these instructions to install Node.js and NPM.

npm i -g '@googlemaps/js-samples'
googlemaps-js-samples init map-latlng-literal DESTINATION_FOLDER

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