Change the way the number of elements are shown on selecting a Point if multiple items exist at that point

Question

Currently in ArcGIS Online if multiple items exist in a single point the template is shown like this

Will I be able to view the details with the number of elements as a part of the template like this

Answer 1

You can retrieve the number of selected features using Popup.featureCount.

The following CodePen uses this property to provide a dynamic PopupTemplate.title: https://codepen.io/arnofiva/pen/5b532f8577d097107cf8040da57e0b97

var template = layer.popupTemplate;
var defaultTitle = template.title;

// Compute popup title before it is shown
template.title = function() {
  var total = view.popup.featureCount;
  if (total > 1) {
    return defaultTitle + " - Count: " + total + "";
  } else {
    return defaultTitle;
  }
}

See the following ArcGIS API for JavaScript resources for more information on popups and widgets:

• Popup Widget
• PopupTemplate - use functions to set content
• Popup with DOM node
• Widget development - ViewModel pattern