chore(): update barcodescanner

src/plugins/barcodescanner.ts

@@ -3,11 +3,11 @@ import {Plugin, Cordova} from './plugin';
 /**
  * The Barcode Scanner Plugin opens a camera view and automatically scans a barcode, returning the data back to you.
  *
- * Requires Cordova plugin: `phonegap-plugin-barcodescanner`. For more info, please see the [BardcodeScanner plugin docs](https://github.com/phonegap/phonegap-plugin-barcodescanner).
+ * Requires Cordova plugin: `phonegap-plugin-barcodescanner`. For more info, please see the [BarcodeScanner plugin docs](https://github.com/phonegap/phonegap-plugin-barcodescanner).
  *
  * @usage
  * ```js
- * BarcodeScanner.scan(options).then((barcodeData) => {
+ * BarcodeScanner.scan().then((barcodeData) => {
  *  // Success! Barcode data is here
  * }, (err) => {
  * 	// An error occurred
@@ -20,6 +20,21 @@ import {Plugin, Cordova} from './plugin';
   pluginRef: 'cordova.plugins.barcodeScanner'
 })
 export class BarcodeScanner {
+
+  /**
+   * Open the barcode scanner.
+   */
   @Cordova()
-  static scan(options:any){};
+  static scan(){
+    // This Promise is replaced by one from the @Cordova decorator that wraps
+    // the plugin's callbacks. We provide a dummy one here so TypeScript
+    // knows that the correct return type is Promise, because there's no way
+    // for it to know the return type from a decorator.
+    // See https://github.com/Microsoft/TypeScript/issues/4881
+    return new Promise<any>((res, rej) => {});
+  };
+
+  // Not well supported
+  // @Cordova()
+  // static encode(type, data){};
 }