Vue Js Scan Qr Code

Introduction

Vue.js is a popular JavaScript framework for building user interfaces. One of its features is the ability to scan QR codes. In this article, we will explore how to use Vue.js to scan QR codes.

How to Scan QR Code Using Vue.js

To scan a QR code using Vue.js, we need to use a library called Vue-QRCode-Reader. This library provides a Vue.js component that can be used to scan QR codes.

Step 1: Install Vue-QRCode-Reader

To install Vue-QRCode-Reader, we can use npm:

npm install vue-qrcode-reader

Step 2: Import Vue-QRCode-Reader Component

After installing Vue-QRCode-Reader, we can import the QRCodeReader component in our Vue.js application:

import VueQrcodeReader from 'vue-qrcode-reader'

Step 3: Add Vue-QRCode-Reader Component to Template

Next, we add the Vue-QRCode-Reader component to our template:

<template>
	<div>
		<VueQrcodeReader></VueQrcodeReader>
	</div>
</template>

Step 4: Handle Scanned QR Code

Finally, we need to handle the scanned QR code. We can do this by adding an onDecode event listener to the Vue-QRCode-Reader component:

<template>
	<div>
		<VueQrcodeReader @onDecode="handleDecode"></VueQrcodeReader>
	</div>
</template>

<script>
	export default {
		methods: {
			handleDecode: function (result) {
				console.log(result)
			}
		}
	}
</script>

Conclusion

Using Vue.js to scan QR codes is a straightforward process. We can use the Vue-QRCode-Reader library to add this functionality to our Vue.js applications.

FAQs

1. Is Vue-QRCode-Reader a free library?

Yes, Vue-QRCode-Reader is an open-source library released under the MIT license.

2. Does Vue-QRCode-Reader support other types of barcodes?

No, Vue-QRCode-Reader only supports QR codes.

3. Can Vue-QRCode-Reader be used with other JavaScript frameworks?

No, Vue-QRCode-Reader is specifically designed for use with Vue.js.

4. Is it possible to style the Vue-QRCode-Reader component?

Yes, we can style the Vue-QRCode-Reader component using CSS.

5. What browsers does Vue-QRCode-Reader support?

Vue-QRCode-Reader uses the getUserMedia API, so it is supported in modern web browsers such as Google Chrome, Firefox, and Safari.