Qr code generator with javascript
This tutorial is about how to make a simple QR Generator using JavaScript.
Make the QR generator project structured using the HTML element.
Therefore, CSS has to be employed in the styling of the QR generator.
To make the QR generator as dynamic as possible, include JavaScript.
The source code for this project can be downloaded immediately using the button and a link labeled ‘Download Now’ or using the git clone command from the GitHub repository of the project.
Structure (HTML):
Similar to the calculator example, it describes the bare-bone skeleton form of an HTML file.
In order in title, it will be called as “QR Code Generator”.
The second section is the body section that has the main content of the given project and case analysis.
Inside the body there is a div with the class container which contains another div with the class box. This one generates a container for the layout of the QR generator.
Within the box div:
The label element used to show a message to the user and it is “Enter Text or URL”.
The input provides the user with an input field of type text with the label “Text or URL”, a text hint that may be entered. The input field of this AR is called QU stap and has the ID of qrText.
It is expected that the generated QR code image will be in a div with ID imgBox.
Within the div named imgBox, an img element with an id qrImg shows a location to display the generated QR code image. For now, the src attribute is an empty tag.
To make the QR code generating method appear, a button named ‘Generate QR Code’ made of the button element is used when clicked. It calls the generateQR() function which is created from the Js file.
Functionality (Javascript – qr.js assumed):
The generateQR() function (defined in the external Javascript file qr.js) is likely responsible for:
For the calculation process we take the value which has been put in the input form qrText.
Employing a QR code generation library that will generate an image with a QR code to the text or URL passed to the function.
Earlier, it was setting the I’m src attribute of the qrImg element to the dataURL of the created QR code image. This makes it possible for the image to be appear in the imgBox div.
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