Getting Lat/Lng from a Click Event

This example listens for the click event, gets the latitude and longitude coordinates of the click from google.maps.MouseEvent.latLng, and displays those coordinates in an info window.

Read the documentation.

TypeScript

function initMap() {
  const myLatlng = { lat: -25.363, lng: 131.044 };

  const map = new google.maps.Map(document.getElementById("map")!, {
    zoom: 4,
    center: myLatlng,
  });

  // Create the initial InfoWindow.
  let infoWindow = new google.maps.InfoWindow({
    content: "Click the map to get Lat/Lng!",
    position: myLatlng,
  });
  infoWindow.open(map);

  // Configure the click listener.
  map.addListener("click", (mapsMouseEvent) => {
    // Close the current InfoWindow.
    infoWindow.close();

    // Create a new InfoWindow.
    infoWindow = new google.maps.InfoWindow({
      position: mapsMouseEvent.latLng,
    });
    infoWindow.setContent(
      JSON.stringify(mapsMouseEvent.latLng.toJSON(), null, 2)
    );
    infoWindow.open(map);
  });
}

JavaScript

function initMap() {
  const myLatlng = { lat: -25.363, lng: 131.044 };
  const map = new google.maps.Map(document.getElementById("map"), {
    zoom: 4,
    center: myLatlng,
  });
  // Create the initial InfoWindow.
  let infoWindow = new google.maps.InfoWindow({
    content: "Click the map to get Lat/Lng!",
    position: myLatlng,
  });
  infoWindow.open(map);
  // Configure the click listener.
  map.addListener("click", (mapsMouseEvent) => {
    // Close the current InfoWindow.
    infoWindow.close();
    // Create a new InfoWindow.
    infoWindow = new google.maps.InfoWindow({
      position: mapsMouseEvent.latLng,
    });
    infoWindow.setContent(
      JSON.stringify(mapsMouseEvent.latLng.toJSON(), null, 2)
    );
    infoWindow.open(map);
  });
}

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>Event Click LatLng</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="./index.js"></script>
  </head>
  <body>
    <div id="map"></div>
  </body>
</html>

All

<!DOCTYPE html>
<html>
  <head>
    <title>Event Click LatLng</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>
      function initMap() {
        const myLatlng = { lat: -25.363, lng: 131.044 };
        const map = new google.maps.Map(document.getElementById("map"), {
          zoom: 4,
          center: myLatlng,
        });
        // Create the initial InfoWindow.
        let infoWindow = new google.maps.InfoWindow({
          content: "Click the map to get Lat/Lng!",
          position: myLatlng,
        });
        infoWindow.open(map);
        // Configure the click listener.
        map.addListener("click", (mapsMouseEvent) => {
          // Close the current InfoWindow.
          infoWindow.close();
          // Create a new InfoWindow.
          infoWindow = new google.maps.InfoWindow({
            position: mapsMouseEvent.latLng,
          });
          infoWindow.setContent(
            JSON.stringify(mapsMouseEvent.latLng.toJSON(), null, 2)
          );
          infoWindow.open(map);
        });
      }
    </script>
  </head>
  <body>
    <div id="map"></div>
  </body>
</html>
function initMap() { const myLatlng = { lat: -25.363, lng: 131.044 }; const map = new google.maps.Map(document.getElementById("map"), { zoom: 4, center: myLatlng, }); // Create the initial InfoWindow. let infoWindow = new google.maps.InfoWindow({ content: "Click the map to get Lat/Lng!", position: myLatlng, }); infoWindow.open(map); // Configure the click listener. map.addListener("click", (mapsMouseEvent) => { // Close the current InfoWindow. infoWindow.close(); // Create a new InfoWindow. infoWindow = new google.maps.InfoWindow({ position: mapsMouseEvent.latLng, }); infoWindow.setContent( JSON.stringify(mapsMouseEvent.latLng.toJSON(), null, 2) ); infoWindow.open(map); }); }
/* 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>Event Click LatLng</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 event-click-latlng DESTINATION_FOLDER

Run in Google Cloud Shell

Google Cloud Shell is an interactive shell environment for Google Cloud Platform that makes it easy for you to learn and experiment with GCP and manage your projects and resources from your web browser.

Run in Cloud Shell