: Ending a Photoshop script when no layers are selected I've been working with a function I found on stackoverflow here that works as far as I can tell by grouping the layers, dumping layer

@Hamaas979

I think this will work, I tested it...
By checking the objType you can see if its an array or LayerSet/Folder.
I hope this gets you on the right track.

function getSelectedLayers(){
var objType = typeof app.activeDocument.activeLayer.layers;
if(objType !== "undefined"){
var len = app.activeDocument.activeLayer.layers.length;
if(len > 0){
var idGrp = stringIDToTypeID( "groupLayersEvent" );
var descGrp = new ActionDescriptor();
var refGrp = new ActionReference();
refGrp.putEnumerated(charIDToTypeID( "Lyr " ),charIDToTypeID( "Ordn" ),charIDToTypeID( "Trgt" ));
descGrp.putReference(charIDToTypeID( "null" ), refGrp );
executeAction( idGrp, descGrp, DialogModes.ALL );
var resultLayers=new Array();
for (var ix=0;ix<len;ix++){
resultLayers.push(app.activeDocument.activeLayer.layers[ix])
};
var id8 = charIDToTypeID( "slct" );
var desc5 = new ActionDescriptor();
var id9 = charIDToTypeID( "null" );
var ref2 = new ActionReference();
var id10 = charIDToTypeID( "HstS" );
var id11 = charIDToTypeID( "Ordn" );
var id12 = charIDToTypeID( "Prvs" );
ref2.putEnumerated( id10, id11, id12 );
desc5.putReference( id9, ref2 );
executeAction( id8, desc5, DialogModes.NO );
return resultLayers;
}
}
return null;
}

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@Samaraweera207

Something like this should work....

var activelayer = application.document.activeLayer;

if(activeLayer){
var layers = getSelectedLayers();
}else{
alert("Select a Layer");
}

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