title: get zipcode from latitude and longitude in javascript
body: <p>want to show the postal code of a location from latitude and longitude of that location. below is my code.</p>
  
  <pre><code>function markerLocation() { 
    var currentLocation = marker.getPosition();
    var geocoder  = new google.maps.Geocoder();        
    var location  = new google.maps.LatLng(currentLocation.lat(), currentLocation.lng());
  
    geocoder.geocode({ 'latLng': location , function (results, status) {
      if (status == google.maps.GeocoderStatus.OK) { 
        var add = results[0].address_components[1][1];
        document.getElementById('lat').value = add;
      }
    });
  </code></pre>
  
  <p>Here I want to show the postal code in lat. but when i use address_components it shows undefined.
  kindly help.</p>