Google-maps – How to search for all points in a given radius of a zipcode with google maps api

Note: this answer received an invalid 3rd party edit which essentially replaced its content, something that a 3rd party editor should not do. However, the result may be more useful than the original, so both versions are now given below:

• Original author Anon's version from 2010, after one edit by Anon

  google.maps.event.trigger(map, 'resize'); map.setZoom( map.getZoom() );

is suggested by http://code.google.com/p/gmaps-api-issues/issues/detail?id=1448 as a v3 substitute for v2's checkResize().

Blech - bad google, no cookie.

• User Eugeniusz Fizdejko's complete rewrite form 2012:

For me works when adding a marker:

var marker = new google.maps.Marker({
    position: myLatlng,
    title:"Hello World!"
});

google.maps.event.addListener(map, "idle", function(){
    marker.setMap(map);
});

Simply do the following:

I. Declare a global variable:

var markersArray = [];

II. Define a function:

function clearOverlays() {
  for (var i = 0; i < markersArray.length; i++ ) {
    markersArray[i].setMap(null);
  }
  markersArray.length = 0;
}

OR

google.maps.Map.prototype.clearOverlays = function() {
  for (var i = 0; i < markersArray.length; i++ ) {
    markersArray[i].setMap(null);
  }
  markersArray.length = 0;
}

III. Push markers in the 'markerArray' before calling the following:

markersArray.push(marker);
google.maps.event.addListener(marker,"click",function(){});

IV. Call the clearOverlays(); or map.clearOverlays(); function wherever required.

That's it!!