Returning attributes from another layer via Arcade intersect?

[DaveK]

Hello! 

I'm creating an Acrade expression that will allow me to return attribute information from another layer via an intersect. In this case wetland information will be returned when a parcel is clicked on. My current expression works but I cant seem to figure out how to return text that says "No Wetland" when there is no intersecting wetland. Any help is appreciated. 

Arcade Expression:

var points =FeatureSetByName($map,"WetlandsLayer");
var countp = Intersects(points,$feature);

var result = "";
for (var item in countp){
var id = item["LABEL12"];
result += id + ' '
}
return result

Thanks!

[jcarlson]

Easy enough! You can check to see how many features are in the intersection, and return a different value when it's 0.

var points =FeatureSetByName($map,"WetlandsLayer");
var countp = Intersects(points,$feature);

if (Count(countp) < 1) {
  return 'No Wetlands'
}

var result = "";
for (var item in countp){
  var id = item["LABEL12"];
  result += id + ' '
}
return result

[drWood]

The below code is what I recently put together to achieve the same outcome with use of an Attribute Rule. Josh's suggestion is also valid.

var basins = FeatureSetByName ($datastore, "Watersheds_2017", ["WATERSHED_CODE"],true);

var matchedBasin = First(Intersects(basins, Geometry($feature)));

if(matchedBasin == null) {return null}

else {return matchedBasin.WATERSHED_CODE};