How to Generate QR Code using JavaScript
What Are QR Codes?
QR codes (is short for “Quick Response code”. These codes are used to store information. The information is stored in the pixels of a square-shaped grid. QR codes are the type of barcodes that can be read by image-oriented digital devices, such as a digital camera. Almost every modern smartphone has a built-in QR reader that we use to do payments, open applications, download apps, for E-commerce, and so on.
QR code is a graphic consisting of black dots and squares. The QR code is created to store the information that can be read by a smartphone device and can be translated to some meaningful. So, it is an encoded piece of data.
Use of QR codes
QR codes are used to hide information from humans. It is used with many applications especially for doing payments. These codes are like barcodes and are only machine-readable. The digital device can read the information via scanning the QR code.
In this article, we’ll go over two ways to generate QR codes in JavaScript: using a library called QRCode.js and a third-party library called QRious.
asdf asdf there is a <p> tag
<p>hello</p>
'The Codecademy Team, composed of experienced educators and tech experts, is dedicated to making tech skills accessible to all. We empower learners worldwide with expert-reviewed content that develops and enhances the technical skills needed to advance and succeed in their careers.'
Meet the full teamRelated articles
Learn more on Codecademy
- Learn how to use JavaScript — a powerful and flexible programming language for adding website interactivity.
- Beginner Friendly.15 hours
- Learn to build front-end web apps with JavaScript and React.
- Includes 9 Courses
- With Certificate
- Intermediate.37 hours
- Learn how to control the flow of a program and use JavaScript to power dynamic behaviors on websites.
- Beginner Friendly.4 hours