Example sources in the examples dir

examples/preload.js

@@ -0,0 +1,40 @@
+goog.require('ol.Map');
+goog.require('ol.View');
+goog.require('ol.layer.Tile');
+goog.require('ol.source.BingMaps');
+
+
+var view = new ol.View({
+  center: [-4808600, -2620936],
+  zoom: 8
+});
+
+var map1 = new ol.Map({
+  layers: [
+    new ol.layer.Tile({
+      preload: Infinity,
+      source: new ol.source.BingMaps({
+        key: 'Ak-dzM4wZjSqTlzveKz5u0d4IQ4bRzVI309GxmkgSVr1ewS6iPSrOvOKhA-CJlm3',
+        imagerySet: 'Aerial'
+      })
+    })
+  ],
+  renderer: exampleNS.getRendererFromQueryString(),
+  target: 'map1',
+  view: view
+});
+
+var map2 = new ol.Map({
+  layers: [
+    new ol.layer.Tile({
+      preload: 0, // default value
+      source: new ol.source.BingMaps({
+        key: 'Ak-dzM4wZjSqTlzveKz5u0d4IQ4bRzVI309GxmkgSVr1ewS6iPSrOvOKhA-CJlm3',
+        imagerySet: 'AerialWithLabels'
+      })
+    })
+  ],
+  renderer: exampleNS.getRendererFromQueryString(),
+  target: 'map2',
+  view: view
+});