Google Maps api json ajax-标记未显示

Question

I have coded the part where I fetch the JOSN of markers and iterate through them. But for some reason the markers are not showing up on map. Can someone help me find the mistake.

      $.ajax({
            url: "get_markers.php",
            type: 'POST',
            dataType: 'json', 
            data: {'address':address},
            success: function (html, status, response) {
                $.each(html, function(i, place) {
                    alert(JSON.stringify(place.lat)+","+JSON.stringify(place.lng));  
                    latLng = new google.maps.LatLng(JSON.stringify(place.lat), JSON.stringify(place.lng)); 
                    marker = new google.maps.Marker({
                      position: latLng,
                      map: map
                      //title: data.title
                    }); 
                });                 
            }

I have already defined the map variable, latLng and marker. Also I get the right lat and lang values when I do a alert(..).

Thanks

Answer 1

Why are you converting to string.

The Constructor Documentation

LatLng(lat:number, lng:number, noWrap?:boolean)

Change

latLng = new google.maps.LatLng(JSON.stringify(place.lat), JSON.stringify(place.lng)); 

To

latLng = new google.maps.LatLng(place.lat,place.lng);