pset8 mashup - markers not showing up in map

Question

Is there anything wrong with the code below? The markers are not showing up in the map.

function addMarker(place)
{

var latLng = {lat: parseFloat(place.latitude), lng: parseFloat(place.longitude)};


var marker = new google.maps.Marker({
      position: latLng,
      map: map,
      title: 'Hello World!'
    });

markers.push(marker);
}

Answer 1

This can happen if latitude and/or longitude are TEXT columns. They need to be NUMERIC columns, otherwise the select SQL in the update route returns no rows and addMarker doesn't get called.