Can You Get the Information on the QR Code Image Just by Using Javascript?
<p><strong>Recently, I found something very interesting and it is about QR codes.</strong></p>
<p><strong>It is really amazing that you can use pure JavaScript to parse the QR code image and get the content it represents.</strong></p>
<h1>1.# Friends, try it, please!</h1>
<p>My friends, I have prepared an online example for you, you just need to copy the image of the QR code here. Then you can experience its effect!</p>
<p><iframe frameborder="0" height="600" scrolling="no" src="https://cdn.embedly.com/widgets/media.html?src=https%3A%2F%2Fcodepen.io%2Fqianlong%2Fembed%2Fpreview%2FwvxgLRr%3Fdefault-tabs%3Dhtml%252Cresult%26height%3D600%26host%3Dhttps%253A%252F%252Fcodepen.io%26slug-hash%3DwvxgLRr&display_name=CodePen&url=https%3A%2F%2Fcodepen.io%2Fqianlong%2Fpen%2FwvxgLRr&image=https%3A%2F%2Fshots.codepen.io%2Fqianlong%2Fpen%2FwvxgLRr-512.jpg%3Fversion%3D1673276761&key=a19fcc184b9711e1b4764040d3dc5c07&type=text%2Fhtml&schema=codepen" title="qrcode" width="800"></iframe></p>
<p>You can click this <a href="https://www.google.com/search?q=qrcode&sxsrf=AJOqlzX9o34eXyBBbOUG9IJQD9OJ1WSI9g%3A1673276712759&tbm=isch&sa=X&ved=2ahUKEwiXtczA4br8AhV8HbcAHXE6D-EQ_AUoAXoECAEQAw&biw=1261&bih=693&dpr=2.2" rel="noopener ugc nofollow" target="_blank">link</a> to copy a QR code image.</p>
<h1>2. About BarcodeDetector</h1>
<p>Parsing QR codes can be done by <code>BarcodeDetector</code>, it is so convenient.</p>
<p>(from <a href="https://developer.mozilla.org/en-US/docs/Web/API/BarcodeDetector" rel="noopener ugc nofollow" target="_blank">mdn</a>) The BarcodeDetector interface of the Barcode Detection API allows the detection of linear and two-dimensional barcodes in images.</p>
<p><a href="https://fatfish.medium.com/can-you-get-the-information-on-the-qr-code-image-just-by-using-javascript-13885a999fac">Website</a></p>