<script src="./qrcode.js"></script>

<div id="qrcode"></div>

<script type="text/javascript">
  var qrcode = new QRCode(document.getElementById("qrcode"), {
    text: "https:///",
    width: 128,
    height: 128,
    colorDark: "#000000",
    colorLight: "#ffffff",
    correctLevel: QRCode.CorrectLevel.H,
  });
</script>