I create a marker on the map, in the same function there is a function of deleting a marker by right-click (well, or a separate one that checks by id , the problem will be the same).

 google.maps.event.addListener(map, 'click', function (event) { var marker = new google.maps.Marker({ position: event.latLng, map: map, draggable: true }); markers.push(marker); google.maps.event.addListener(marker, "rightclick", function (event) { markers.splice(marker, 1); marker.setMap(null); }); });

Also there is a function to delete all at once.

 var deleteMarkers = function () { markers.forEach(function (marker) { marker.setMap(null); }); markers = []; }

There is no problem if you delete all the markers or one by one, or leave 2 or more. But if you leave 1, and then delete via deleteMarkers , then the marker remains on the map, the array is cleared.

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