CODEWITHSUNDEEP
qr-code
Sidney
Sidney

Reputation: 143

Generating a Simple QR-Code with just HTML

I came across this APIserver to generate the QRCode but I was wondering is it possible to just use HTML to generate the QRcode for example this is what I was thinking

<input id="text" type="text" value="Please Enter Your NRIC or Work Permit" style="Width:20%"/> 
         
<img src="https://api.qrserver.com/v1/create-qr-code/?data=HelloWorld&amp;size=100x100" alt="" title="HELLO" />

In the "title" I believe it is where you will write your text and the QR code would generate, I was wondering how can I create a text box for me to key in the value directly on a website.

Upvotes: 14

Views: 127078

Answers (3)

zedfoxus
zedfoxus

Reputation: 37029

Were you thinking of something like this? https://jsfiddle.net/v7d6d1ps/

Your HTML can be similar to what you have but with added onblur event. Only HTML cannot do this, so I have added jQuery/JavaScript combination.

function generateBarCode() {
  var nric = $('#text').val();
  var url = 'https://api.qrserver.com/v1/create-qr-code/?data=' + nric + '&amp;size=50x50';
  $('#barcode').attr('src', url);
}
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>

<input id="text" type="text" value="NRIC or Work Permit" style="Width:20%" onblur='generateBarCode();' />

<img id='barcode' src="https://api.qrserver.com/v1/create-qr-code/?data=HelloWorld&amp;size=100x100" alt="" title="HELLO" width="50" height="50" />

Copy and paste this into an HTML file on your desktop. Type in the text box 12345 and hit tab. Notice that the QR code will update.

Upvotes: 20

Esatuse55
Esatuse55

Reputation: 1

Here is a QR code containing a phone number and URL:

<!DOCTYPE html>
<html>
<head>
  <title>QR Code</title>
</head>
<body>
  <h1>QR Code for your information</h1>
  <div id="qrcode"></div>

  <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/[email protected]/qrcode.min.js"></script>
  <script>
    new QRCode(document.getElementById("qrcode"), {
      text: "tel:+1234098765\nhttp://example.com/",
      width: 256,
      height: 256,
      colorDark: "#000000",
      colorLight: "#ffffff",
      correctLevel: QRCode.CorrectLevel.H
    });
  </script>
</body>
</html>

Upvotes: 0

MiMFa
MiMFa

Reputation: 1164

You can use the snippet below, as the simplest way:

function UpdateQRCode(val){
    document.getElementById("qrcode").setAttribute("src","https://api.mimfa.net/qrcode?value="+encodeURIComponent(val)+"&as=value");
}
document.addEventListener("DOMContentLoaded", function(){
    UpdateQRCode(document.getElementById("qrcode").value);
});
<input onchange="UpdateQRCode(this.value)" value="Hello World..."/><br>
<iframe id="qrcode" src="" width="250" height="250"></iframe>

Enjoy...

Upvotes: 2

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