Skip to main content

How to use the Chrome BarcodeDetector from Chrome Shape Detection API in Angular?

I tried first using the BarcodeDetector in a plain JS project and it works just fine, but when trying to implement it in Angular it's not working. I get an error that the BarcodeDetector cannot be found. I would really appreciate it if someone can give me some guidance on how to approach this. I couldn't find any good example online

This is my plain js implementation:

let barcodeImg = document.querySelector('img');

let detectFunc = async() => {
    if (!('BarcodeDetector' in window))  {
        console.log("It's not");
    } else {
        console.log("Barcode supported");

        const barcodeDetector  = new BarcodeDetector();

        try {
            barcodeDetector.detect(barcodeImg)
            .then(detectedCodes  => {
                console.log(detectedCodes);
            })
        } catch (e) {
            console.log("Barcode detection failed");
        }
    }
} 

This is my Angular implementation:

export class AppComponent {

  BarcodeDetector: any;
  @ViewChild("barcodeImg") barcodeImg!: ElementRef;
  hasBarcodeDetector = '';

  constructor() {
    try {
      this.hasBarcodeDetector = 'BarcodeDetector' in window ? 'true' : 'false';
      const barcodeDetector = new BarcodeDetector();
      barcodeDetector.detect(this.barcodeImg.nativeElement).then(detectedCodes => {
        console.log(detectedCodes);
      })
    } catch (e) {
      console.log(e);
    }
  }
};
Via Active questions tagged javascript - Stack Overflow https://ift.tt/hWwKnml

Comments

Popular posts from this blog

Prop `className` did not match in next js app

I have written a sample code ( Github Link here ). this is a simple next js app, but giving me error when I refresh the page. This seems to be the common problem and I tried the fix provided in the internet but does not seem to fix my issue. The error is Warning: Prop className did not match. Server: "MuiBox-root MuiBox-root-1" Client: "MuiBox-root MuiBox-root-2". Did changes for _document.js, modified _app.js as mentioned in official website and solutions in stackoverflow. but nothing seems to work. Could someone take a look and help me whats wrong with the code? Via Active questions tagged javascript - Stack Overflow https://ift.tt/2FdjaAW

How to show number of registered users in Laravel based on usertype?

i'm trying to display data from the database in the admin dashboard i used this: <?php use Illuminate\Support\Facades\DB; $users = DB::table('users')->count(); echo $users; ?> and i have successfully get the correct data from the database but what if i want to display a specific data for example in this user table there is "usertype" that specify if the user is normal user or admin i want to user the same code above but to display a specific usertype i tried this: <?php use Illuminate\Support\Facades\DB; $users = DB::table('users')->count()->WHERE usertype =admin; echo $users; ?> but it didn't work, what am i doing wrong? source https://stackoverflow.com/questions/68199726/how-to-show-number-of-registered-users-in-laravel-based-on-usertype

Why is my reports service not connecting?

I am trying to pull some data from a Postgres database using Node.js and node-postures but I can't figure out why my service isn't connecting. my routes/index.js file: const express = require('express'); const router = express.Router(); const ordersCountController = require('../controllers/ordersCountController'); const ordersController = require('../controllers/ordersController'); const weeklyReportsController = require('../controllers/weeklyReportsController'); router.get('/orders_count', ordersCountController); router.get('/orders', ordersController); router.get('/weekly_reports', weeklyReportsController); module.exports = router; My controllers/weeklyReportsController.js file: const weeklyReportsService = require('../services/weeklyReportsService'); const weeklyReportsController = async (req, res) => { try { const data = await weeklyReportsService; res.json({data}) console