JSFiddle - React, Tailwind, and code Playground

by Lawrence Ross

HTML

<script src="https://maps.googleapis.com/maps/api/js?libraries=geometry,places&amp;ext=.js"></script>
<select id="location">
  <option>Dubai</option>
  <option>Sharjah</option>
</select>
<div id="map_canvas"></div>

CSS

html,
body,
#map_canvas {
  height: 100%;
  width: 100%;
  margin: 0px;
  padding: 0px
}

JavaScript

var geocoder;
var map;
var geoMarker;

function initialize() {
  var map = new google.maps.Map(
    document.getElementById("map_canvas"), {
      center: new google.maps.LatLng(37.4419, -122.1419),
      zoom: 13,
      mapTypeId: google.maps.MapTypeId.ROADMAP
    });
  geoMarker = new google.maps.Marker();
  geoMarker.setPosition(map.getCenter());
  geoMarker.setMap(map);

  $("#location").change(function() {
    var addr = ($('#location').val());

    var geocoder = new google.maps.Geocoder();
    geocoder.geocode({
      'address': addr
    }, function(results, status) {
      if (status == google.maps.GeocoderStatus.OK) {
        map.setCenter(results[0].geometry.location);
        geoMarker.setOptions({
          position: results[0].geometry.location,
        });
      } else {
        alert("Something got wrong " + status);
      }
    });
  });

}
google.maps.event.addDomListener(window, "load", initialize);