Arcade else statement with intersect features

SWrdno

Hello,

I am using the arcade expressions for a popup feature for emergency statuses. When you click on the land parcel of interest, if the parcel intersects with the evacuation polygon it will say the Type field: 'Evacuation Alert'. But if you are not in an evacuation alert area; I would like it to say 'None'. 

 

This is currently how I have the code which is how it is displaying on the below images:

var intersectLayer=Intersects(FeatureSetByName($map,"RDNO Evacuation Areas"), $feature)

for (var f in intersectLayer)

if (IsEmpty(intersectLayer)) {

  return "None"

} else{

    return f.Type

}

 

  

 

 

 

I have reviewed the other posts from these two below, I don't know what's going wrong here.

https://community.esri.com/t5/arcgis-online-questions/arcade-intersect-returns-null-field-values/td-p/1174652

https://community.esri.com/t5/arcgis-pro-questions/arcade-if-else-do-nothing/td-p/207436

JohannesLindner

You're checking the layer for null, which it never will be.

What you want to do:

• get the first element of the intersect
  • if there is no intersection, the intersect fs will be empty. calling First() on an empty fs will return null
• check that element for null

 

var evac_fs = FeatureSetByName($map,"RDNO Evacuation Areas")
var evac = First(Intersects(evac_fs, $feature))
return IIf(evac == null, "None", evac.Type)