if array is empty in a repeater (wix Stores)?

$w.onReady(function () {
    $w("#repeater1").onItemReady(($item, itemData, index) => {
 let ribbonText = itemData.ribbons[0].text;
 let array = itemData.ribbons;
 console.log(array)
 console.log(ribbonText)
 if (ribbonText == undefined){
        $item('#ribbon').hide();
    }
 else {
       $item('#ribbon').show();
       $item('#ribbon').label = ribbonText;
   }
});

});

Try to work with console to find out the output.