diff --git a/examples/accessible.js b/examples/accessible.js
index fbef5217cc..6ce87edac0 100644
--- a/examples/accessible.js
+++ b/examples/accessible.js
@@ -13,9 +13,9 @@ var map = new ol.Map({
   ],
   target: 'map',
   controls: ol.control.defaults({
-    attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
+    attributionOptions: {
       collapsible: false
-    })
+    }
   }),
   view: new ol.View({
     center: [0, 0],
diff --git a/examples/canvas-tiles.js b/examples/canvas-tiles.js
index fa3a3eb15c..36050dca6d 100644
--- a/examples/canvas-tiles.js
+++ b/examples/canvas-tiles.js
@@ -22,9 +22,9 @@ var map = new ol.Map({
   ],
   target: 'map',
   controls: ol.control.defaults({
-    attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
+    attributionOptions: {
       collapsible: false
-    })
+    }
   }),
   view: new ol.View({
     center: ol.proj.transform(
diff --git a/examples/center.js b/examples/center.js
index 1c813ad788..c77f763f53 100644
--- a/examples/center.js
+++ b/examples/center.js
@@ -51,9 +51,9 @@ var map = new ol.Map({
   ],
   target: 'map',
   controls: ol.control.defaults({
-    attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
+    attributionOptions: {
       collapsible: false
-    })
+    }
   }),
   view: view
 });
diff --git a/examples/custom-controls.js b/examples/custom-controls.js
index c2083fd7ad..d31c2d2a4a 100644
--- a/examples/custom-controls.js
+++ b/examples/custom-controls.js
@@ -59,9 +59,9 @@ ol.inherits(app.RotateNorthControl, ol.control.Control);
 
 var map = new ol.Map({
   controls: ol.control.defaults({
-    attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
+    attributionOptions: {
       collapsible: false
-    })
+    }
   }).extend([
     new app.RotateNorthControl()
   ]),
diff --git a/examples/custom-interactions.js b/examples/custom-interactions.js
index c5a447059c..b0f6f952f7 100644
--- a/examples/custom-interactions.js
+++ b/examples/custom-interactions.js
@@ -92,8 +92,7 @@ app.Drag.prototype.handleDragEvent = function(evt) {
   var deltaX = evt.coordinate[0] - this.coordinate_[0];
   var deltaY = evt.coordinate[1] - this.coordinate_[1];
 
-  var geometry = /** @type {ol.geom.SimpleGeometry} */
-      (this.feature_.getGeometry());
+  var geometry = this.feature_.getGeometry();
   geometry.translate(deltaX, deltaY);
 
   this.coordinate_[0] = evt.coordinate[0];
diff --git a/examples/device-orientation.js b/examples/device-orientation.js
index 5cdce0a698..1be0336b10 100644
--- a/examples/device-orientation.js
+++ b/examples/device-orientation.js
@@ -22,9 +22,9 @@ var map = new ol.Map({
   ],
   target: 'map',
   controls: ol.control.defaults({
-    attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
+    attributionOptions: {
       collapsible: false
-    })
+    }
   }),
   view: view
 });
diff --git a/examples/export-map.js b/examples/export-map.js
index a4843f3741..d96475a82d 100644
--- a/examples/export-map.js
+++ b/examples/export-map.js
@@ -23,9 +23,9 @@ var map = new ol.Map({
   ],
   target: 'map',
   controls: ol.control.defaults({
-    attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
+    attributionOptions: {
       collapsible: false
-    })
+    }
   }),
   view: new ol.View({
     center: [0, 0],
diff --git a/examples/export-pdf.js b/examples/export-pdf.js
index 857dffc49d..ff253f1f94 100644
--- a/examples/export-pdf.js
+++ b/examples/export-pdf.js
@@ -30,9 +30,9 @@ var map = new ol.Map({
   layers: [raster, vector],
   target: 'map',
   controls: ol.control.defaults({
-    attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
+    attributionOptions: {
       collapsible: false
-    })
+    }
   }),
   view: new ol.View({
     center: [0, 0],
diff --git a/examples/feature-animation.js b/examples/feature-animation.js
index 536c850313..d04e741717 100644
--- a/examples/feature-animation.js
+++ b/examples/feature-animation.js
@@ -24,9 +24,9 @@ var map = new ol.Map({
     })
   ],
   controls: ol.control.defaults({
-    attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
+    attributionOptions: {
       collapsible: false
-    })
+    }
   }),
   target: 'map',
   view: new ol.View({
diff --git a/examples/geojson.js b/examples/geojson.js
index f0bb72c7d5..fe76499fd7 100644
--- a/examples/geojson.js
+++ b/examples/geojson.js
@@ -180,9 +180,9 @@ var map = new ol.Map({
   ],
   target: 'map',
   controls: ol.control.defaults({
-    attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
+    attributionOptions: {
       collapsible: false
-    })
+    }
   }),
   view: new ol.View({
     center: [0, 0],
diff --git a/examples/geolocation-orientation.js b/examples/geolocation-orientation.js
index 17c0eefeda..3edfe41bf5 100644
--- a/examples/geolocation-orientation.js
+++ b/examples/geolocation-orientation.js
@@ -23,9 +23,9 @@ var map = new ol.Map({
   ],
   target: 'map',
   controls: ol.control.defaults({
-    attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
+    attributionOptions: {
       collapsible: false
-    })
+    }
   }),
   view: view
 });
@@ -46,14 +46,14 @@ var positions = new ol.geom.LineString([],
     /** @type {ol.geom.GeometryLayout} */ ('XYZM'));
 
 // Geolocation Control
-var geolocation = new ol.Geolocation(/** @type {olx.GeolocationOptions} */ ({
+var geolocation = new ol.Geolocation({
   projection: view.getProjection(),
   trackingOptions: {
     maximumAge: 10000,
     enableHighAccuracy: true,
     timeout: 600000
   }
-}));
+});
 
 var deltaMean = 500; // the geolocation sampling period mean in ms
 
diff --git a/examples/geolocation.js b/examples/geolocation.js
index bfe2a165cd..b17bcbe10f 100644
--- a/examples/geolocation.js
+++ b/examples/geolocation.js
@@ -26,9 +26,9 @@ var map = new ol.Map({
   ],
   target: 'map',
   controls: ol.control.defaults({
-    attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
+    attributionOptions: {
       collapsible: false
-    })
+    }
   }),
   view: view
 });
diff --git a/examples/igc.js b/examples/igc.js
index babe987fe1..f8f1cb2df7 100644
--- a/examples/igc.js
+++ b/examples/igc.js
@@ -99,9 +99,9 @@ var map = new ol.Map({
   ],
   target: 'map',
   controls: ol.control.defaults({
-    attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
+    attributionOptions: {
       collapsible: false
-    })
+    }
   }),
   view: new ol.View({
     center: [703365.7089403362, 5714629.865071137],
diff --git a/examples/layer-clipping-webgl.js b/examples/layer-clipping-webgl.js
index 70b4d99c7f..53581f97c9 100644
--- a/examples/layer-clipping-webgl.js
+++ b/examples/layer-clipping-webgl.js
@@ -22,9 +22,9 @@ if (!ol.has.WEBGL) {
     renderer: /** @type {Array<ol.renderer.Type>} */ (['webgl', 'canvas']),
     target: 'map',
     controls: ol.control.defaults({
-      attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
+      attributionOptions: {
         collapsible: false
-      })
+      }
     }),
     view: new ol.View({
       center: [0, 0],
diff --git a/examples/layer-clipping.js b/examples/layer-clipping.js
index 7bf68cd908..3047eed841 100644
--- a/examples/layer-clipping.js
+++ b/examples/layer-clipping.js
@@ -12,9 +12,9 @@ var map = new ol.Map({
   layers: [osm],
   target: 'map',
   controls: ol.control.defaults({
-    attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
+    attributionOptions: {
       collapsible: false
-    })
+    }
   }),
   view: new ol.View({
     center: [0, 0],
diff --git a/examples/layer-swipe.js b/examples/layer-swipe.js
index c0c829e517..c4c014b58c 100644
--- a/examples/layer-swipe.js
+++ b/examples/layer-swipe.js
@@ -19,9 +19,9 @@ var map = new ol.Map({
   layers: [osm, bing],
   target: 'map',
   controls: ol.control.defaults({
-    attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
+    attributionOptions: {
       collapsible: false
-    })
+    }
   }),
   view: new ol.View({
     center: [0, 0],
diff --git a/examples/localized-openstreetmap.js b/examples/localized-openstreetmap.js
index 26587abc1c..71d72d517d 100644
--- a/examples/localized-openstreetmap.js
+++ b/examples/localized-openstreetmap.js
@@ -35,9 +35,9 @@ var map = new ol.Map({
   ],
   target: 'map',
   controls: ol.control.defaults({
-    attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
+    attributionOptions: {
       collapsible: false
-    })
+    }
   }),
   view: new ol.View({
     maxZoom: 18,
diff --git a/examples/min-max-resolution.js b/examples/min-max-resolution.js
index 6e07336001..d24e5ceabe 100644
--- a/examples/min-max-resolution.js
+++ b/examples/min-max-resolution.js
@@ -27,9 +27,9 @@ var map = new ol.Map({
   ],
   target: 'map',
   controls: ol.control.defaults({
-    attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
+    attributionOptions: {
       collapsible: false
-    })
+    }
   }),
   view: new ol.View({
     center: [653600, 5723680],
diff --git a/examples/mouse-position.js b/examples/mouse-position.js
index 4f4ca98c3d..c80afc5c76 100644
--- a/examples/mouse-position.js
+++ b/examples/mouse-position.js
@@ -18,9 +18,9 @@ var mousePositionControl = new ol.control.MousePosition({
 
 var map = new ol.Map({
   controls: ol.control.defaults({
-    attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
+    attributionOptions: {
       collapsible: false
-    })
+    }
   }).extend([mousePositionControl]),
   layers: [
     new ol.layer.Tile({
diff --git a/examples/moveend.js b/examples/moveend.js
index b190d50a54..be2c34a319 100644
--- a/examples/moveend.js
+++ b/examples/moveend.js
@@ -15,9 +15,9 @@ var map = new ol.Map({
   ],
   target: 'map',
   controls: ol.control.defaults({
-    attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
+    attributionOptions: {
       collapsible: false
-    })
+    }
   }),
   view: new ol.View({
     center: [0, 0],
diff --git a/examples/navigation-controls.js b/examples/navigation-controls.js
index f55377ae33..ea1fd3af74 100644
--- a/examples/navigation-controls.js
+++ b/examples/navigation-controls.js
@@ -8,9 +8,9 @@ goog.require('ol.source.OSM');
 
 var map = new ol.Map({
   controls: ol.control.defaults({
-    attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
+    attributionOptions: {
       collapsible: false
-    })
+    }
   }).extend([
     new ol.control.ZoomToExtent({
       extent: [
diff --git a/examples/permalink.js b/examples/permalink.js
index 9ee2c5ba6c..181ee061e5 100644
--- a/examples/permalink.js
+++ b/examples/permalink.js
@@ -30,9 +30,9 @@ var map = new ol.Map({
     })
   ],
   controls: ol.control.defaults({
-    attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
+    attributionOptions: {
       collapsible: false
-    })
+    }
   }),
   target: 'map',
   view: new ol.View({
diff --git a/examples/popup.js b/examples/popup.js
index 93668a3900..26d5196bae 100644
--- a/examples/popup.js
+++ b/examples/popup.js
@@ -18,13 +18,13 @@ var closer = document.getElementById('popup-closer');
 /**
  * Create an overlay to anchor the popup to the map.
  */
-var overlay = new ol.Overlay(/** @type {olx.OverlayOptions} */ ({
+var overlay = new ol.Overlay({
   element: container,
   autoPan: true,
   autoPanAnimation: {
     duration: 250
   }
-}));
+});
 
 
 /**
diff --git a/examples/rotation.js b/examples/rotation.js
index 8c689bfb70..afaacb521b 100644
--- a/examples/rotation.js
+++ b/examples/rotation.js
@@ -13,9 +13,9 @@ var map = new ol.Map({
   ],
   target: 'map',
   controls: ol.control.defaults({
-    attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
+    attributionOptions: {
       collapsible: false
-    })
+    }
   }),
   view: new ol.View({
     center: [14200000, 4130000],
diff --git a/examples/scale-line.js b/examples/scale-line.js
index 45de9b6185..c8dbf41e7f 100644
--- a/examples/scale-line.js
+++ b/examples/scale-line.js
@@ -10,9 +10,9 @@ var scaleLineControl = new ol.control.ScaleLine();
 
 var map = new ol.Map({
   controls: ol.control.defaults({
-    attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
+    attributionOptions: {
       collapsible: false
-    })
+    }
   }).extend([
     scaleLineControl
   ]),
diff --git a/examples/teleport.js b/examples/teleport.js
index b1a123c83c..9a55da9356 100644
--- a/examples/teleport.js
+++ b/examples/teleport.js
@@ -12,9 +12,9 @@ var map = new ol.Map({
     })
   ],
   controls: ol.control.defaults({
-    attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
+    attributionOptions: {
       collapsible: false
-    })
+    }
   }),
   view: new ol.View({
     center: [0, 0],
diff --git a/examples/vector-osm.js b/examples/vector-osm.js
index 55adfd23d9..8eaa252ab5 100644
--- a/examples/vector-osm.js
+++ b/examples/vector-osm.js
@@ -127,9 +127,9 @@ map = new ol.Map({
   layers: [raster, vector],
   target: document.getElementById('map'),
   controls: ol.control.defaults({
-    attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
+    attributionOptions: {
       collapsible: false
-    })
+    }
   }),
   view: new ol.View({
     center: [739218, 5906096],
diff --git a/examples/wms-image-custom-proj.js b/examples/wms-image-custom-proj.js
index 900e6fb1f5..bc1c738701 100644
--- a/examples/wms-image-custom-proj.js
+++ b/examples/wms-image-custom-proj.js
@@ -41,7 +41,7 @@ var layers = [
         'LAYERS': 'ch.swisstopo.pixelkarte-farbe-pk1000.noscale',
         'FORMAT': 'image/jpeg'
       },
-      serverType: /** @type {ol.source.WMSServerType} */ ('mapserver')
+      serverType: 'mapserver'
     })
   }),
   new ol.layer.Image({
@@ -52,7 +52,7 @@ var layers = [
       attributions: '© <a href="http://www.geo.admin.ch/internet/geoportal/' +
           'en/home.html">National parks / geo.admin.ch</a>',
       params: {'LAYERS': 'ch.bafu.schutzgebiete-paerke_nationaler_bedeutung'},
-      serverType: /** @type {ol.source.WMSServerType} */ ('mapserver')
+      serverType: 'mapserver'
     })
   })
 ];
diff --git a/examples/wms-time.js b/examples/wms-time.js
index 5ec676e768..bed8b05b33 100644
--- a/examples/wms-time.js
+++ b/examples/wms-time.js
@@ -23,11 +23,11 @@ var layers = [
   }),
   new ol.layer.Tile({
     extent: extent,
-    source: new ol.source.TileWMS(/** @type {olx.source.TileWMSOptions} */ ({
+    source: new ol.source.TileWMS({
       attributions: ['Iowa State University'],
       url: 'https://mesonet.agron.iastate.edu/cgi-bin/wms/nexrad/n0r-t.cgi',
       params: {'LAYERS': 'nexrad-n0r-wmst'}
-    }))
+    })
   })
 ];
 var map = new ol.Map({
diff --git a/examples/wmts-ign.js b/examples/wmts-ign.js
index 46931fb3c9..2e3dc155ed 100644
--- a/examples/wmts-ign.js
+++ b/examples/wmts-ign.js
@@ -11,9 +11,9 @@ goog.require('ol.tilegrid.WMTS');
 var map = new ol.Map({
   target: 'map',
   controls: ol.control.defaults({
-    attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
+    attributionOptions: {
       collapsible: false
-    })
+    }
   }),
   view: new ol.View({
     zoom: 5,
diff --git a/examples/wmts.js b/examples/wmts.js
index 89aaba98b3..243cdc38ee 100644
--- a/examples/wmts.js
+++ b/examples/wmts.js
@@ -49,9 +49,9 @@ var map = new ol.Map({
   ],
   target: 'map',
   controls: ol.control.defaults({
-    attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
+    attributionOptions: {
       collapsible: false
-    })
+    }
   }),
   view: new ol.View({
     center: [-11158582, 4813697],