title: Google Maps v3: What is the maximum zoom level of a roadmap?
body: <p>I am familiar with how to use the MaxZoomService to determine the maximum zoom level for satellite imagery.  But how can I determine the maximum zoom level for the <code>google.maps.MapTypeId.ROADMAP</code> MapType?</p>
  
  <p>Or better yet, how can I determine the maximum zoom level for a given MapTypeId such as returned by <code>map.getMapTypeId()</code>?</p>
  
  <p><code>map.mapTypes[map.getMapTypeId()]</code> returns undefined, so I cannot access the <code>.maxZoom</code> property of the MapType as noted/suggested here:
  <a href="https://stackoverflow.com/questions/7513417/how-do-i-detect-when-a-user-is-at-the-maximum-zoom-level-google-maps-v3">How do I detect when a user is at the maximum zoom level? (google maps v3)</a></p>