Arcade else statement with intersect features

SWrdno — Wed, 17 May 2023 20:20:02 GMT

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

Re: Arcade else statement with intersect features

JohannesLindner — Thu, 18 May 2023 07:52:04 GMT

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)

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Arcade else statement with intersect features

Re: Arcade else statement with intersect features