fix compilation error on web; don't depend on package:js anymore for dart2wasm

 import 'dart:async';
+import 'dart:js';
 import 'dart:js_interop';
 import 'dart:ui';
 
-import 'package:js/js.dart';
 import 'package:mobile_scanner/src/enums/mobile_scanner_error_code.dart';
 import 'package:mobile_scanner/src/enums/torch_state.dart';
 import 'package:mobile_scanner/src/mobile_scanner_exception.dart';

@@ -11,32 +11,31 @@ import 'package:mobile_scanner/src/web/zxing/result_point.dart';
 ///
 /// See also: https://github.com/zxing-js/library/blob/master/src/core/Result.ts
 @JS()
+@anonymous
 @staticInterop
 abstract class Result {}
 
 extension ResultExt on Result {
-  /// Get the barcode format.
-  ///
-  /// See also https://github.com/zxing-js/library/blob/master/src/core/BarcodeFormat.ts
-  external JSFunction getBarcodeFormat;
+  @JS('barcodeFormat')
+  external JSNumber? get _barcodeFormat;
 
-  /// Get the raw bytes of the result.
-  external JSFunction getRawBytes;
+  @JS('text')
+  external JSString? get _text;
 
-  /// Get the points of the result.
-  external JSFunction getResultPoints;
+  @JS('rawBytes')
+  external JSUint8Array? get _rawBytes;
 
-  /// Get the text of the result.
-  external JSFunction getText;
+  @JS('resultPoints')
+  external JSArray? get _resultPoints;
 
-  /// Get the timestamp of the result.
-  external JSFunction getTimestamp;
+  @JS('timestamp')
+  external JSNumber? get _timestamp;
 
   /// Get the barcode format of the result.
+  ///
+  /// See also https://github.com/zxing-js/library/blob/master/src/core/BarcodeFormat.ts
   BarcodeFormat get barcodeFormat {
-    final JSNumber? format = getBarcodeFormat.callAsFunction() as JSNumber?;
-
-    switch (format?.toDartInt) {
+    switch (_barcodeFormat?.toDartInt) {
       case 0:
         return BarcodeFormat.aztec;
       case 1:
@@ -82,36 +81,25 @@ extension ResultExt on Result {
 
   /// Get the corner points of the result.
   List<Offset> get resultPoints {
-    final JSArray? resultPoints = getResultPoints.callAsFunction() as JSArray?;
+    final JSArray? points = _resultPoints;
 
-    if (resultPoints == null) {
+    if (points == null) {
       return [];
     }
 
-    return resultPoints.toDart.cast<ResultPoint>().map((point) {
+    return points.toDart.cast<ResultPoint>().map((point) {
       return Offset(point.x, point.y);
     }).toList();
   }
 
   /// Get the raw bytes of the result.
-  Uint8List? get rawBytes {
-    final JSUint8Array? rawBytes =
-        getRawBytes.callAsFunction() as JSUint8Array?;
-
-    return rawBytes?.toDart;
-  }
+  Uint8List? get rawBytes => _rawBytes?.toDart;
 
   /// Get the text of the result.
-  String? get text {
-    return getText.callAsFunction() as String?;
-  }
+  String? get text => _text?.toDart;
 
   /// Get the timestamp of the result.
-  int? get timestamp {
-    final JSNumber? timestamp = getTimestamp.callAsFunction() as JSNumber?;
-
-    return timestamp?.toDartInt;
-  }
+  int? get timestamp => _timestamp?.toDartInt;
 
   /// Convert this result to a [Barcode].
   Barcode get toBarcode {

@@ -4,25 +4,20 @@ import 'dart:js_interop';
 ///
 /// See also: https://github.com/zxing-js/library/blob/master/src/core/ResultPoint.ts
 @JS()
+@anonymous
 @staticInterop
 abstract class ResultPoint {}
 
 extension ResultPointExt on ResultPoint {
-  external JSFunction getX;
+  @JS('x')
+  external JSNumber get _x;
 
-  external JSFunction getY;
+  @JS('y')
+  external JSNumber get _y;
 
   /// The x coordinate of the point.
-  double get x {
-    final JSNumber? x = getX.callAsFunction() as JSNumber?;
-
-    return x?.toDartDouble ?? 0;
-  }
+  double get x => _x.toDartDouble;
 
   /// The y coordinate of the point.
-  double get y {
-    final JSNumber? y = getY.callAsFunction() as JSNumber?;
-
-    return y?.toDartDouble ?? 0;
-  }
+  double get y => _y.toDartDouble;
 }

 import 'dart:async';
+import 'dart:js';
 import 'dart:js_interop';
 import 'dart:ui';
 
-import 'package:js/js.dart';
 import 'package:mobile_scanner/src/enums/barcode_format.dart';
 import 'package:mobile_scanner/src/enums/camera_facing.dart';
 import 'package:mobile_scanner/src/enums/torch_state.dart';
@@ -161,13 +161,11 @@ final class ZXingBarcodeReader extends BarcodeReader {
       _reader?.decodeContinuously.callAsFunction(
         null,
         _reader?.videoElement,
-        allowInterop((result, error) {
+        allowInterop((Result? result, JSAny? error) {
           if (!controller.isClosed && result != null) {
-            final barcode = (result as Result).toBarcode;
-
             controller.add(
               BarcodeCapture(
-                barcodes: [barcode],
+                barcodes: [result.toBarcode],
               ),
             );
           }

@@ -24,7 +24,6 @@ dependencies:
     sdk: flutter
   flutter_web_plugins:
     sdk: flutter
-  js: ^0.6.3
   plugin_platform_interface: ^2.0.2  
   web: ^0.3.0
 
@@ -45,4 +44,4 @@ flutter:
         pluginClass: MobileScannerPlugin
       web:
         pluginClass: MobileScannerWeb
-        fileName: web/mobile_scanner_web.dart
+        fileName: src/web/mobile_scanner_web.dart