colkito / qrcode-decoder-js

Javascript QR code decoder

JavaScript QR code decoder

This library is a QR code decoder/reader for HTML5 enabled browser.

Install

Just run $ bower install qrcode-decoder-js

Include the library <script src="path/to/qrcode-decoder-js/lib/qrcode-decoder.min.js"></script>

Usage

Set qrcode.callback to function "func(data)", where data will get the decoded information.

• Decode image with: qrcode.decode(url or DataURL)
• Decode from canvas with "qr-canvas" ID: qrcode.decode()

Development

If you want to improve the code and send your pull request, you will need:

Clone this repository

$ git clone https://github.com/colkito/qrcode-decoder-js.git

$ cd qrcode-decoder-js

Install dev dependencies

$ npm install

To compile and minify the lib

$ grunt compile

There is a convinent Gruntfile.js for automation during editing the code

$ grunt

Credits

This repo is a fork and port of Lazar Laszlo's jsqrcode.

Why another fork?

Because I use this awesome library in my personal projects/work and I noticed that was not updated/improved since several months ago.

qrcode-decoder-js's Issues

Exception on loading qrcode-decoder.js

I get an exception on this line

qrcode = qrcode || {};

because qrcode decoder doesn't exist yet.

Object doesn't support property or method 'defineGetter' error in IE 9, 10

I prepared the PR to fix this issue.