Why ArcGIS JavaScript text label does not show on feature?

Question

My working example here does not show the labeling information on features.

 var featureLayer;
 map = new Map("map", {
 basemap: "satellite",
 center: [-46.807, 32.553],
 zoom: 3
 });
 //create a feature collection for the flickr photos
 var featureCollection = {
 "layerDefinition": null,
 "featureSet": {
 "features": [ 
 new Graphic({ 
 geometry: new Point(-47.476661, 42.702002, map.spatialReference),
 attributes: {ObjectID:1 ,title: "my title", description: "my description"} 
 }),
 new Graphic({ 
 geometry: new Point(-46.476661, 31.702002, map.spatialReference),
 attributes: {ObjectID:2 ,title: "my title", description: "my description"} 
 })
 ],
 "geometryType": "esriGeometryPoint"
 }
 };
 featureCollection.layerDefinition = {
 "geometryType": "esriGeometryPoint",
 "objectIdField": "ObjectID",
 "drawingInfo": {
 "renderer": {
 "type": "simple",
 "symbol": {
 "type": "esriSMS",
 "style": "esriSMSCircle",
 "color": [216, 15, 20, 255],
 "size": 18,
 }
 }
 },
 "fields": [{
 "name": "ObjectID",
 "alias": "ObjectID",
 "type": "esriFieldTypeOID"
 }, {
 "name": "description",
 "alias": "Description",
 "type": "esriFieldTypeString"
 }, {
 "name": "title",
 "alias": "Title",
 "type": "esriFieldTypeString"
 }]
 };
 featureLayer = new FeatureLayer(featureCollection, {
 id: 'my-layer'
 });
 
 var labelClass = new LabelClass({
 "labelExpressionInfo": {"value": "{title} title"},
 "labelPlacement":"above-right",
 "symbol": new TextSymbol()
 });
 
 featureLayer.setLabelingInfo([ labelClass ])
 
 
 map.addLayers([featureLayer]);

Answer 1

You need to indicate the map to show the labels. In order to do this just set Map property showLabels to true. In your code,

map = new Map("map", {
 basemap: "satellite",
 center: [-46.807, 32.553],
 zoom: 3,
 showLabels: true // <- HERE
});