Heat maps in map viewer by using Arcade field

JasonXiao

Arcade expressions currently are not supported for Heat Maps.

To use Arcade expression with the Heat Map symbology style on ArcGIS Online.

So, I do not need to add a permanent field within the dataset.

RussRoberts

Heatmap is using feature density with kernel proximity method which does not leverage a field.

https://developers.arcgis.com/javascript/latest/api-reference/esri-renderers-HeatmapRenderer.html