title: Google maps marker not showing up API v3
body: <p>The marker isnt showing up, i read the docs but i cant find the problem, can somebody help me plz?</p>
  
  <p>heres the js:</p>
  
  <pre><code>function initialize() {
        var mapOptions = {
          center: new google.maps.LatLng(-8.064903, -34.896872),
          zoom: 16,
          mapTypeId: google.maps.MapTypeId.ROADMAP
        };
        var map = new google.maps.Map(document.getElementById("map_canvas"), mapOptions);
  
        var marker = new google.maps.Marker({
            position: location,
            title:"Hello World!",
            visible: true
        });
        marker.setMap(map);
      }
  </code></pre>