topic Arcade "Expects" in ArcGIS Online Developers Questions

Arcade "Expects"

NAOMIPAUL — Mon, 17 Jun 2024 13:16:41 GMT

I am having issue with using an Arcade expression for a Pop-up. The end goal is to only show a list of Field Name Alias that are equal to "Yes" for a select set of fields (not all the fields).

Expects($feature, "ADA", "Amphitheater", "Baseball", "Basketball", "BattingCage", "Beach", "BoatRamp", "Boating", "Clubhouse", "CommunityCenter", "Concessions", "Cornhole", "DiscGolf", "DogPark", "Equestrian", "Fishing", "FitnessPavillion", "Football", "Fountain", "Garden", "Gazebo", "Golf", "Greenway", "GreenSpace", "Gym", "Horseshoe", "Kitchen", "Lake", "LittleLeague", "Paddle", "PaddleCraft", "PicnicArea", "PicnicPad", "PicnicTables", "Pickleball", "Pier", "PingPong", "Pool", "PumpTrack", "RecreationCenter", "Restrooms", "Shelters", "Skateboard", "Soccer", "Softball", "SplashPad", "Swim", "Tennis", "Track", "Trails", "Volleyball", "Walkway")

var sch = Schema($feature)

var Yes =[]

for(var field in $feature){

if($feature[field] == "Yes"){

for(var s in sch.fields){

if(sch.fields[s].name == field){

Push(Yes, sch.fields[s].alias);

break;

}

return Concatenate(Yes, "\n") + TextFormatting.NewLine + $feature.Other

The issue I am having is that the result shows "Parking", even though Parking is not in the list of Field Names.

Map: https://gaston.maps.arcgis.com/apps/mapviewer/index.html?webmap=7322c66c64e54dd682e7f9de89621e2e

Re: Arcade "Expects"

KenBuja — Mon, 17 Jun 2024 13:51:04 GMT

Expects is more critical when the Arcade expression is used in Visualization and Labeling. From the documentation:

In some profiles, such as Visualization and Labeling, apps only request the data attributes required for rendering each feature or label.

You're getting the list of fields from the feature, which will contain all fields in the Popup profile. You can put some logic in there to skip fields you don't want to include

for(var field in $feature){ if (field != 'Parking'){ if($feature[field] == "Yes"){ for(var s in sch.fields){ if(sch.fields[s].name == field){ Push(Yes, sch.fields[s].alias); break; } } } } }

Re: Arcade "Expects"

NAOMIPAUL — Mon, 17 Jun 2024 14:07:33 GMT

Thank-you, that worked perfectly!