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createQRCodeValidator
Creates a value validator for a particular Barcode type.
ts
const control = new FormControl('Фоо', createQRCodeValidator());
console.log(control.errors);
// {
// qrcode: {
// message: 'Unsupported character in QR Code: "Ф".',
// value: '1234',
// type: 'EAN13'
// }
// }
Parameters
encoding
The QR Code encoding. Defaults to 'ISO_8859_1'.
Returns
ValidatorFn
A validator function that returns an error map with the `qrcode` property if the validation check fails, otherwise `null`.