index.html

<!DOCTYPE html>
<html>
  <head>
    <title>Simple Map</title>
    <script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>
    <script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyAeTlM2-93T2TwzAVf-tpTAoCxlfHGSnqc&libraries=&v=weekly"></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 src="./index.js" type="module"></script>
  </head>
  <body>
    <div id="map"></div>
    <p>si tu vois cette erreure, quelque chose ne va pas (clef d'api google map, javascript désactivé ou fichiers .js manquants..)</p>
  </body>
</html>