map.fitBounds(bounds) causing browser to freeze

Question

I have a really strange error that keeps causing my browser to just freeze when I try to resize a map to fit the markers I have placed on it.

My resize code for reference:

 function sizeMap() {
            // create a new bounds object to define the new boundry
            var bounds = new google.maps.LatLngBounds();
            // loop through each the string latlang values held in the latlng
            // aray
            for ( var i = 0; i <latlngArray.length ; i++) {
                // create a new LatLng object based on the string value
                var tempLatLng = new google.maps.LatLng(latlngArray[i]);
                // extend the latlng bounds based on the new location
                bounds.extend(tempLatLng);
            }
            //  map.fitBounds(bounds); <== everything seems to work fine until this line is uncommented 
        }

Problem is I cant debug it properly using firebug because that freezes to! Any one got any ideas on what the problem may be?

Thanks in advance.

Update:

In answer to puckheads question the following code shows where the latlng array is populated to start with:

function geocodeAddress (address) {
           
            var geocoder = new google.maps.Geocoder();
            geocoder.geocode( {'address': address}, function(results, status) {
                if (status == google.maps.GeocoderStatus.OK) {
                    loadMarker(results[0].geometry.location,"Info here",address);
                    latlngArray.push(results[0].geometry.location); <== latlngs are first added here they are as a result of a call to the google geocode service with a standard string address.
                } else {
                    alert("Geocode was not successful for the following reason: " +" "+  status);
                }
            });
        }

Answer 1

The problem is as others have mentioned, that you try to create a LatLng object with another LatLng object as argument. It only accepts 2 or 3 arguments, where the two first are numbers. https://developers.google.com/maps/documentation/javascript/reference#LatLng

However you can entirely skip the part where you create a new LatLng object, and use the current one from your array inside the loop.

This fixes the problem: http://jsfiddle.net/y9ze8a1f/1/

function sizeMap() {
    // create a new bounds object to define the new boundry
    var bounds = new google.maps.LatLngBounds();
    // loop through each the string latlang values held in the latlng
    // aray
    for ( var i = 0; i <latlngArray.length ; i++) {
        // This is causing the issue, you can only create a LatLng with two separate latitude and longitude arguments
        //var tempLatLng = new google.maps.LatLng(latlngArray[i]);

        bounds.extend(latlngArray[i]);
    }
    map.fitBounds(bounds);
}

If you would want to create a new LatLng based on the old one though, you could do that by using the LatLng methods lat() and lng()

http://jsfiddle.net/q7sh4put/

function sizeMap() {
    // create a new bounds object to define the new boundry
    var bounds = new google.maps.LatLngBounds();
    // loop through each the string latlang values held in the latlng
    // aray
    for ( var i = 0; i <latlngArray.length ; i++) {
        // create a new LatLng object based on the string value
        var tempLatLng = new google.maps.LatLng(latlngArray[i].lat(), latlngArray[i].lng());

        // extend the latlng bounds based on the new location
        bounds.extend(tempLatLng);
    }
    map.fitBounds(bounds);
}