Unfortunately that does also not work for me

Hello,

I’m trying to use Quasar to build an App for iOS and Android using the Barcode plugin. Android works without a Problem, however on iOS i always get ReferenceError: Can't find variable: cordova. I’m trying the following on button press:

cordova.plugins.barcodeScanner.scan(
function (result) {
    alert("We got a barcode\n" +
          "Result: " + result.text + "\n" +
          "Format: " + result.format + "\n" +
          "Cancelled: " + result.cancelled);
},
function (error) {
    alert("Scanning failed: " + error);
}
);

I tested it with Simulator and Device and the problem occurs with both. Do I have to somehow register the cordovavariable?