How to create a QR code generator in JavaScript.

To create a QR code generator in JavaScript, you can use the following steps:

First, you will need to include the JavaScript library for generating QR codes. There are several options available, such as qrcode.js or node-QRcode.
Next, create a function that takes in the data you want to encode as a QR code and generates the QR code using the library you have chosen.
You can then use this function to generate a QR code whenever you need it by calling the function and passing in the data you want to encode.
Here is an example of a function that generates a QR code using qrcode.js:

You can then call this function and pass in the data you want to encode as a QR code, like this:

generateQRCode(“https://www.example.com");

This will generate a QR code containing the URL “https://www.example.com" and display it on the page with the ID “QRcode”.
You can customize the appearance and functionality of the QR code by adjusting the options passed to the QRCode constructor. For example, you can change the size, colors, and error correction level of the QR code by modifying the width, height, colorDark, colorLight, and correctLevel options.

Let’s make and enjoy 😎