Assign infowindow for each marker in google maps

Question

I have a problem as regarding the assigning of infowindow to each marker in my map.

JS code:

for (i=0;i<location.length;i++){
    var id = location[i][0];
    var name = location [i][1];
    var pos = new google.maps.LatLng(location[i[3],location[i][4]);


    var contentString = id;
    var infowindow = new google.maps.InfoWindow({content:contentString});
    var marker= new google.maps.Marker({position: pos, map: map, title: id});

    marker.addListener('click', function() { infowindow.open(map, this);

});

The problem is that my click handler will display the same "id" for each marker (id displayed is the id of my LAST record in my database). Is there a way to display each infowindow for each marker?

Answer 1

Assuming that your location array is fetched and populated from the database...

First of all you have an error:

var pos = new google.maps.LatLng(location[i[3],location[i][4]);

you should fix your brackets and put it this way:

var pos = new google.maps.LatLng(location[ i ][3],location[ i ][4]);

Here is an example:

I tried to follow your example as much as I could since you did not specify an array and made one which corresponds to your array (you can add one more column if your want for your names)

Loop:

  for (var i = 0; i < location.length; i++) {

    var marker = new google.maps.Marker({
        position: new google.maps.LatLng(location[i][1], location[i][2]),
        map: map,
        title: location[i][0]
    });

    google.maps.event.addListener(marker, 'click', (function(marker, i) {
        return function() {
            infowindow.setContent(location[i][0]);
            infowindow.open(map, marker);
        }
    })(marker, i));
}

Declare your infoWindow before the loop and extract it inside your event

Infowindow:

 var infowindow = new google.maps.InfoWindow();

Click event:

    google.maps.event.addListener(marker, 'click', (function(marker, i) {
     return function() {
         infowindow.setContent(location[i][0]);
         infowindow.open(map, marker);
     }
 })(marker, i));

Full fiddle example: http://jsfiddle.net/eugensunic/7TZFP/5/