[Mahmoud Elsafy]

Main .jsx

function getSelectedLayer() {

SL = app.project.activeItem.selectedLayers;

//return selected layer index or any other property

return SL.length != 0 ? SL[0].index : null

};

main .js in HTML

var csInterface = new CSInterface();

setInterval(() => {

csInterface.evalScript(“getSelectedLayer()”, function (result) {

if (result !== “null”) {

//Do something when layer is selected

$(‘#elemID’).html(‘Selected Layer index: ‘+ result);

}

});

}, 1000); // checks selected layer every one second