JSFiddle - React, Tailwind, and code Playground

HTML

<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
<script type="text/javascript">
  var infowindow;
(function () {

  google.maps.Map.prototype.markers = new Array();
    
  google.maps.Map.prototype.addMarker = function(marker) {
    this.markers[this.markers.length] = marker;
  };
    
  google.maps.Map.prototype.getMarkers = function() {
    return this.markers
  };
    

})();
  
  function initialize() {
    var latlng = new google.maps.LatLng(35.092945313732635, 33.211669921875);
    var myOptions = {
      zoom: 10,
      center: latlng,
      mapTypeId: google.maps.MapTypeId.ROADMAP
      //mapTypeId: google.maps.MapTypeId.SATELLITE
    };
    map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
    
    var a = new Array();
    var t =  new Object();
    t.name = "test0"
    t.lat =  35.092945313732635
    t.lng =  33.211669921875
    a[0] = t;
  
    var t =  new Object();
    t.name = "test1"
    t.lat =  22.735656852206482
    t.lng =  57.2607421875
    a[1] = t;
    
    var t =  new Object();
    t.name = "test2"
    t.lat =  24.00632619875113
    t.lng =  44.6484375
    a[2] = t;

   
    for (var i = 0; i < a.length; i++) {
        var latlng = new google.maps.LatLng(a[i].lat, a[i].lng);
        map.addMarker(createMarker(a[i].name,latlng));
     }
    console.log(map.getMarkers());    
    
    console.log(map.getMarkers());    
  }
  
  function createMarker(name, latlng) {
    var marker = new google.maps.Marker({position: latlng, map: map});
    google.maps.event.addListener(marker, "click", function() {
      if (infowindow) infowindow.close();
      infowindow = new google.maps.InfoWindow({content: name});
      infowindow.open(map, marker);
    });
    return marker;
  }

</script>
</head>
<body onload="initialize()">
 <div id="map_canvas" style="width:50%; height:240px;float:left;"></div>

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