qrcode-generator

QR Code Generator

##Getting Started

1. Include qrcode.js in your html.
2. Prepare a place holder.
3. Generate QR and render it.

<script type="text/javascript" src="qrcode.js"></script>

<div id="placeHolder"></div>

var typeNumber = 4;
var errorCorrectionLevel = 'L';
var qr = qrcode(typeNumber, errorCorrectionLevel);
qr.addData('Hi!');
qr.make();
document.getElementById('placeHolder').innerHTML = qr.createImgTag();

##API Documentation

###QRCodeFactory

####qrcode(typeNumber, errorCorrectionLevel) => QRCode Create a QRCode Object.

Param	Type	Description
typeNumber	number	Type number (1 ~ 40)
errorCorrectionLevel	string	Error correction level ('L', 'M', 'Q', 'H')

####qrcode.stringToBytes(s) : number[] Encodes a string into an array of number(byte) using any charset. This function is used by internal. Overwrite this function to encode using a multibyte charset.

Param	Type	Description
s	string	string to encode

###QRCode

####addData(data, mode) => void Add a data to encode.

Param	Type	Description
data	string	string to encode
mode	string	Mode ('Numeric', 'Alphanumeric', 'Byte'(default), 'Kanji')

####make() => void Make a QR Code.

####getModuleCount() => number The number of modules(cells) for each orientation. [Note] call make() before this function.

####isDark(row, col) => boolean The module at row and col is dark or not. [Note] call make() before this function.

Param	Type	Description
row	number	0 ~ moduleCount - 1
col	number	0 ~ moduleCount - 1

####createImgTag(cellSize, margin) => string ####createSvgTag(cellSize, margin) => string ####createTableTag(cellSize, margin) => string Helper functions for HTML. [Note] call make() before these functions.

Param	Type	Description
cellSize	number	default: 2
margin	number	default: cellSize * 4

-- The word 'QR Code' is registered trademark of DENSO WAVE INCORPORATED
http://www.denso-wave.com/qrcode/faqpatent-e.html