Merge pull request #16 from Dynamsoft/_dev

read img review

Author: Keillion

1.hello-world/3.read-video-angular/src/app/img-decode/img-decode.component.ts

@@ -18,9 +18,11 @@ export class ImgDecodeComponent implements OnInit {
       for (const result of results) {
         alert(result.barcodeText);
       }
+      if(!results.length){ alert('No barcode found'); }
     } catch (ex) {
       console.error(ex);
     }
+    e.target.value = '';
   }
 
   async ngOnDestroy() {

1.hello-world/4.read-video-react/src/components/ImgDecode/ImgDecode.js

@@ -15,9 +15,11 @@ export default class ImgDecode extends Component {
       for(let result of results){
         alert(result.barcodeText);
       }
+      if(!results.length){ alert('No barcode found'); }
     } catch(ex) {
       console.error(ex);
     }
+    e.target.value = '';
   }
 
   async componentWillUnmount() {

1.hello-world/5.read-video-vue/src/components/ImgDecode.vue

@@ -19,9 +19,11 @@ export default {
         for(let result of results){
           alert(result.barcodeText);
         }
+        if(!results.length){ alert('No barcode found'); }
       } catch(ex) {
         console.error(ex);
       }
+      e.target.value = '';
     }
   },
   async beforeDestroy() {

1.hello-world/6.read-video-vue3/src/components/ImgDecode.vue

@@ -17,9 +17,11 @@ export default {
         for(let result of results){
           alert(result.barcodeText);
         }
+        if(!results.length){ alert('No barcode found'); }
       } catch(ex) {
         console.error(ex);
       }
+      e.target.value = '';
     }
     onBeforeUnmount(async () => {
       if (pReader.value) {

1.hello-world/7.read-video-nextjs/components/ImgDecode.js

@@ -14,9 +14,11 @@ export default class ImgDecode extends Component {
       for(let result of results){
         alert(result.barcodeText);     
       }
+      if(!results.length){ alert('No barcode found'); }
     } catch(ex) {
       console.error(ex);
     }
+    e.target.value = '';
   }
 
   async componentWillUnmount() {

1.hello-world/8.read-video-nuxtjs/components/ImgDecode.vue

@@ -20,9 +20,11 @@ export default {
         for(let result of results){
           alert(result.barcodeText);
         }
+        if(!results.length){ alert('No barcode found'); }
       } catch(ex) {
         console.error(ex);
       }
+      e.target.value = '';
     }
   },
   async beforeDestroy() {