Google Maps API v3: How to remove all markers?

Question

In Google Maps API v2, if I wanted to remove all the map markers, I could simply do:

map.clearOverlays();

How do I do this in Google Maps A

Answer 1

I found using markermanager library in the google-maps-utility-library-v3 project as the easiest way.

1. Set up the MarkerManager

mgr = new MarkerManager(map);
google.maps.event.addListener(mgr, 'loaded', function () {
    loadMarkers();
});

2. Add markers to the MarkerManager

function loadMarkers() {
  var marker = new google.maps.Marker({
            title: title,
            position: latlng,
            icon: icon
   });
   mgr.addMarker(marker);
   mgr.refresh();
 }

3. To clear markers you just need to call the MarkerManger's clearMarkers() function

mgr.clearMarkers();