Example demonstrating how to get feature properties from vector tiles

examples/vector-tile-info.css

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+#map {
+  position: relative;
+}
+
+#info {
+  z-index: 1;
+  opacity: 0;
+  position: absolute;
+  bottom: 0;
+  left: 0;
+  margin: 0;
+  background: rgba(0,60,136,0.7);
+  color: white;
+  border: 0;
+  transition: opacity 100ms ease-in;
+}

examples/vector-tile-info.html

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+---
+layout: example.html
+title: Vector Tile Info
+shortdesc: Getting feature information from vector tiles.
+docs: >
+  <p>Move your pointer over rendered features to display feature properties.</p>
+tags: "vector tiles"
+---
+<div id="map" class="map">
+  <pre id="info"/>
+</div>

examples/vector-tile-info.js

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+goog.require('ol.Map');
+goog.require('ol.View');
+goog.require('ol.format.MVT');
+goog.require('ol.layer.VectorTile');
+goog.require('ol.source.VectorTile');
+
+var map = new ol.Map({
+  target: 'map',
+  view: new ol.View({
+    center: [0, 0],
+    zoom: 2
+  }),
+  layers: [new ol.layer.VectorTile({
+    source: new ol.source.VectorTile({
+      format: new ol.format.MVT(),
+      url: 'https://basemaps.arcgis.com/v1/arcgis/rest/services/World_Basemap/VectorTileServer/tile/{z}/{y}/{x}.pbf'
+    })
+  })]
+});
+
+map.on('pointermove', showInfo);
+
+var info = document.getElementById('info');
+function showInfo(event) {
+  var features = map.getFeaturesAtPixel(event.pixel);
+  if (!features) {
+    info.innerText = '';
+    info.style.opacity = 0;
+    return;
+  }
+  var properties = features[0].getProperties();
+  info.innerText = JSON.stringify(properties, null, 2);
+  info.style.opacity = 1;
+}