title: how to get the current zoom in openlayers
body: <p>i have a question. i need to know the actual zoom of the open layers map</p>
  
  <pre><code>$scope.refreshMap = function (lat, long) {
      map.setView(new ol.View({
          projection: 'EPSG:4326',
          center: [long, lat], 
          zoom: "here I do not know what to put"
      }));
  };
  </code></pre>
  
  <p>i try with <code>map.getZoom()</code> but it doesn't work.
  the logcat throws me a</p>
  
  <pre><code>Uncaught TypeError: Object #&lt;S&gt; has no method 'getZoom'
  </code></pre>
  
  <p>i'm using the openlayers Version: v3.16.0</p>