Segev,
I am not sure what you are trying to do with the popup, but here is a sample that shows the state count in the console:
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no">
<title>ArcGIS JavaScript Tutorials: Create a Starter App</title>
<style>
html,
body,
#viewDiv {
padding: 0;
margin: 0;
height: 100%;
width: 100%;
}
</style>
<link rel="stylesheet" href="https://js.arcgis.com/4.11/esri/css/main.css">
<script src="https://js.arcgis.com/4.11/"></script>
<script>
require([
"esri/Map",
"esri/views/MapView",
"esri/layers/FeatureLayer",
"esri/geometry/geometryEngine",
"esri/tasks/QueryTask",
], function (Map, MapView, FeatureLayer, geometryEngine, QueryTask) {
var points = new FeatureLayer({
url: "https://services3.arcgis.com/1pxU2hJU9ZszJDcX/ArcGIS/rest/services/Young_Adult_Treatment_Facilities/FeatureServer/0"
});
var states = new FeatureLayer({
url: "https://services.arcgis.com/P3ePLMYs2RVChkJx/ArcGIS/rest/services/USA_States_Generalized/FeatureServer/0",
popupTemplate: {
title: "{STATE_NAME}",
content: "layerView"
}
});
var map = new Map({
basemap: "gray",
layers: [states, points]
});
var view = new MapView({
container: "viewDiv",
map: map,
center: [-118.80543, 34.02700],
zoom: 13
});
var query = states.createQuery();
states.queryFeatures(query).then(function(result){
result.features.map(function(feat){
var sName = feat.attributes.STATE_NAME;
var query2 = points.createQuery();
query2.geometry = feat.geometry;
points.queryFeatureCount(query2).then(function (Qresults) {
console.log(sName + " has: " + Qresults);
});
});
});
});
</script>
</head>
<body>
<div id="viewDiv"></div>
</body>
</html>