Tutorial :How do I make a single event handler for all markers in Google Maps V3?



Question:

I understand that if I have multiple markers on a map, and I need to handle clicks on them, I have to set up a handler for each marker like so:

// ...  var marker = new google.maps.Marker({position: new google.maps.LatLng(55, 37)});  marker.setMap(map);  var listener = google.maps.event.addListener(marker, 'click', function(event){      // my listener handler here  });  

But if I have a lot of markers, wouldn't it bee too heavy? Can I somehow set one handler and figure out which marker was clicked inside it?


Solution:1

To do it the way that I wanted to do is impossible, that's true. But I have found a way to do it another way which is a lot better than to have a handler per each marker. It should have been obvious to me, but it hasn't been:

function markerHandler(event){      window.console.log(this);      // 'this' variable is the marker that has been clicked  }    var marker = new google.maps.Marker({position: new google.maps.LatLng(55, 37)});  marker.setMap(map);    var listener = google.maps.event.addListener(marker, 'click', markerHandler);  

Note:If u also have question or solution just comment us below or mail us on toontricks1994@gmail.com
Previous
Next Post »