IsEmpty() is a Liar!

[DanielKurmann]

I am struggling with some arcade that is supposed to hide fields in a table if fields in a related table are null.  

I have written the following code:

IsEmpty(First(FeatureSetByRelationshipName($feature, "Parking_Count_Segments Inspections to Polygons", ["Spaces_30min"], false))) 

This code should return true as :

First(FeatureSetByRelationshipName($feature, "Parking_Count_Segments Inspections to Polygons", ["Spaces_30min"], false))

outputs

[DavidPike · Accepted solution]

Aren't you checking isEmpty() against a row of a feature set which surely exists?

I'd try to check against the record:

(First(FeatureSetByRelationshipName($feature, "Parking_Count_Segments Inspections to Polygons", ["Spaces_30min"], false))).Spaces_30min