x-qrcode | powerfull chrome extension for qrcode encoding | QRCode Processing library

For production build i am using ng build --prod command but getting this error

package.json

I am getting an error when I try to compile my Angular 9 project.

This is the error I get when I run ng serve:

I have an Angular project. When I run npm install I see some errors and dependencies don't appear in node_modules folder. However, I think none of the errors explain the problem. I see some deprecation warnings and 404 for one dependency, but nothing more.

Here is my package.json:

Good afternoon,

I am trying to create a card that displays a QR code from a fixed value. The plugin that I've found takes the value from an input and a button, is there any way to change the js to take the input from a fixed value?

home.page.html

I'm implementing a QRCode scanner in a new app built with ionic 4.0.6 and I have followed the documentation about how to integrate the scanner.

Here the docs: https://ionicframework.com/docs/native/barcode-scanner/

Ionic info:

I'm really really new to Angular and all. So I've gotten a QR code image from a library (angularx-qrcode) generator.

Here's the code to get the image:

I've built a simple web application that receives some codes form an end-point and generates a key, from which a QR-Code must be generated from.

The end key its an Uint8Array that needs to be made into a QRCode, I'm using the angularx-qrcode library, and then converting the Uint8Array to a string using String.fromCharCode.apply(null, uintArray) however this approach is proving to not work for my case.

I need to generate the QRCode form the raw HEX values form my array, however using String.fromCharCode it seems to generate UTF-8 characters, thus generating unexpected characters.

So far I've tried using a library to convert the string to 'ISO-8859-1' called iconv-lite but it didn't seem to work.

I also tried converting the string like this decodeURIComponent(escape(encodedString));, however this throws an erros saying invalid URI, probably because the end key has invalid characters that don't work with that function.

The following is an example of my bytes array, its always 20 bytes long. 156,0,0,0,0,0,148,131,114,7,121,81,85,9,0,0,84,69,48,171

After giving it some though I'm thinking that the issue might also be related with the QR-Code library itself, so I looked for a QR-Code library that receives a Uint8Array instead of a string, but I did not managed to find one.

One of my co-workers managed to resolve this issue on the android app by ending the string as ISO-8859-1 instead of UTF-8.

I believe that the solution would be to generate the QRCode from the bytes array directly so that I wouldn't need to bother with character encodings, but if someone knows other approach to resolve this issue I would gladly try it.

I need a RAW string generated from those bytes, for example the first byte is 156, in hex is 9c, so I need the character that represents 9c, however 9c its not a 'regular' ASCII character, that's why String.fromCharCode doesn't work for me, the end string should be exatly 20 bytes long just like the array.

I used angularx-qrcode to generate a qrcode, and want to use zoom feature (using events onClick, onScroll, etc.) on the qrcode image. I am unable to use the zoom feature on qrcode image, though I succeeded in achieving zoom on 'hover' and 'active' event. I tried using 'ngx-img-zoom' & 'angular-zoom', however unable to integrate with;

I included an id in the qrcode element;

and included a style in style.css;

#zoomx img:hover { transform: scale(1.5); }

It worked! The following style also works;

#zoomx img:active { transform: scale(1.5); }

However, I want to change the [Size]='256', on, 'onClick' event, using a zoom button, change the [Size] using 'onScroll' event and make the code downloadable using "Download Code" button. Though I succeeded in changing the [Size] using two way binding by [(ngModel)] directive, the qrcode image doesn't change or increase/decrease in size when the event occurs. Thanks

I have an angular4 app that is deployed to azure web app (website) by configuring Deployment Options via Portal. I used kuduscript to create custom deployment script [kuduscript -y –node] and then edited deploy.cmd to tell azure how to run angular app.

Dependencies were adjusted in package.json. The prod build [ng build --prod] runs fine locally, but creates an error in azure:

Failed at the ng2project@0.0.2 postinstall script 'node ./node_modules/protractor/bin/webdriver-manager update'

Error: Cannot find module 'D:\home\site\repository\node_modules\protractor\bin\webdriver-manager' at Function.Module._resolveFilename ....

This is because of the postinstall under scripts in package.json