javascript - Google Maps V3 doesn't remove event listener -


i have problem google maps api v3. i'm trying remove mouseover listener when zoom changes.

here code:

$(document).ready(function() {      var myoptions = {         ...     };      var map = new google.maps.map(document.getelementbyid("map_canvas"), myoptions);      function colormaps(map) {         var newmap = map;         var piemontecoords = [             ...         ];                 var piemontepolygon = new google.maps.polygon({             ...         });                  piemontepolygon.setmap(newmap);         google.maps.event.addlistener(piemontepolygon, 'mouseover', function(event) {             var prova = event;             showinfo(prova, newmap, 'italy');         });          google.maps.event.addlistener(newmap, 'zoom_changed', function() {             zoomlevel = map.getzoom();             if (zoomlevel >= 6) {                 google.maps.event.clearlisteners(newmap, 'mouseover');             }             else {                 ...             }         } //fine colormaps         google.maps.event.adddomlistener(window, 'load', colormaps(map));     });

when zoom reaches target level, listener not removed. what's wrong?

you're adding listener piemontepolygon object, you're clearing newmap object, wrong(i'm not expert in area can't sure).

try doing like:

google.maps.event.clearlisteners(piemontepolygon, 'mouseover');


edit:
according docs try aproach, if above code fails.


case 1 (you pass event type second argument well):

google.maps.event.clearinstancelisteners(piemontepolygon);


case 2:

var listener1 = google.maps.event.addlistener(piemontepolygon, 'mouseover', function(     var prova = event;     showinfo(prova, newmap, 'italy') });  google.maps.event.removelistener(listener1);

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