javascript - Adding ID's to google map markers

Question

I have a script that loops and adds markers one at a time.

I am trying to get the current marker to have an info window and and only have 5 markers on a map at a time (4 without info windows and 1 with)

How would I add an id to each marker so that I can delete and close info windows as needed.

This is the function I am using to set the marker:

function codeAddress(address, contentString) {

var infowindow = new google.maps.InfoWindow({
  content: contentString
});

if (geocoder) {

  geocoder.geocode( { 'address': address}, function(results, status) {

    if (status == google.maps.GeocoderStatus.OK) {

        map.setCenter(results[0].geometry.location);

       var marker = new google.maps.Marker({
          map: map, 
          position: results[0].geometry.location
       });

       infowindow.open(map,marker);

      } else {
       alert("Geocode was not successful for the following reason: " + status);
      }
    });
  }

}

Answer 1

JavaScript is a dynamic language. You could just add it to the object itself.

var marker = new google.maps.Marker(markerOptions);
marker.metadata = {type: "point", id: 1};

Also, because all v3 objects extend MVCObject(). You can use:

marker.setValues({type: "point", id: 1});
// or
marker.set("type", "point");
marker.set("id", 1);
var val = marker.get("id");