var labels_and_values = [
["Name = ", $feature.Name],
["Type = ", $feature.Type],
["River = ", $feature.River],
]
var lines = []
for(var i in labels_and_values) {
if(!IsEmpty(labels_and_values[i][1])) {
Push(lines, Concatenate(labels_and_values[i]))
}
}
return Concatenate(lines, TextFormatting.NewLine)
Have a great day!
Johannes