[Typescript] Cannot call a namespace

[MTCoster]

According to the typings from qrcode.d.ts, I should be able to do the following since the export is an instance of the QRCodeFactory interface which has the call signature (typeNumber: TypeNumber, errorCorrectionLevel: ErrorCorrectionLevel) : QRCode;:

import * as qrGenerator from 'qrcode-generator';

function myFunc() {
  const qr = qrGenerator(0, 'H');
  qr.addData('Hello, world!');
  qr.make();
}

However, the typescript compiler returns:

Error: Cannot call a namespace ('qrGenerator')

Alternatively, using qrcode like this compiles without a hitch:

import * as qrGenerator from 'qrcode-generator';

function myFunc() {
  const qr = qrcode(0, 'H');
  qr.addData('Hello, world!');
  qr.make();
}

But it throws a runtime error:

Uncaught ReferenceError: qrcode is not defined

[MTCoster]

Update: I've found a workaround, but it's not nice.

import * as qrGenerator from 'qrcode-generator';

function myFunc() {
  // @ts-ignore
  const qr = qrGenerator.default(0, 'H');
  qr.addData('Hello, world!');
  qr.make();
}

[joseph-navant]

What about this?

import qrcode from 'qrcode-generator';

componentDidLoad() {
  const typeNumber = 4 as TypeNumber;
  const errorCorrectionLevel = 'L' as ErrorCorrectionLevel;
  const qr = qrcode(typeNumber, errorCorrectionLevel);
  qr.addData('Hi!');
  qr.make();
  document.getElementById('placeHolder').innerHTML = qr.createImgTag();
}

[sezginruhi]

Update: I've found a workaround, but it's not nice.

import * as qrGenerator from 'qrcode-generator';

function myFunc() {
  // @ts-ignore
  const qr = qrGenerator.default(0, 'H');
  qr.addData('Hello, world!');
  qr.make();
}

in the file "... node_modules/qrcode-generator/qrcode.d.ts" add

default

interface QRCodeFactory {
  default (qrVersion: number, errorCorrectionLevel: string): QRCode;
  stringToBytes(s: string) : number[];
  stringToBytesFuncs : { [encoding : string] : (s: string) => number[] };
  createStringToBytes(unicodeData: string, numChars: number) :
  (s : string) => number[];
}