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qr-code

Generate QR codes. Based on Kazuhiko Arase's implementation.

QR

Installation

$ component install matthewmueller/qr-code

Example

var qr = require('qr-code');
var dataURI = qr('Hello!');
var img = new Image();
img.src = dataURI;
document.body.appendChild(img);

API

QR(text, options)

Create a QR code containing the given text. The result is a dataURI that you can place in an image or background. QR also takes some options including:

  • type: QR code type. Changes the amount of information you can store in the QR code (ie. density). Defaults to 4.
  • level: Backup level. See QR code error correction. Defaults to M
  • size: Size of the QR code. Defaults to 4.
  • margin: Whitespace around the outside of the image. Defaults to 0.

TODO

  • size should be based on pixels not some arbitrary number.

License

MIT

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  • JavaScript 98.7%
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