1.4.4 • Published 6 years ago

qrcode-generator v1.4.4

Weekly downloads
19,163
License
MIT
Repository
github
Last release
6 years ago

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.

ParamTypeDescription
typeNumbernumberType number (1 ~ 40), or 0 for auto detection.
errorCorrectionLevelstringError 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.

ParamTypeDescription
sstringstring to encode

QRCode

addData(data, mode) => void

Add a data to encode.

ParamTypeDescription
datastringstring to encode
modestringMode ('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.

ParamTypeDescription
rownumber0 ~ moduleCount - 1
colnumber0 ~ moduleCount - 1

createDataURL(cellSize, margin) => string

createImgTag(cellSize, margin, alt) => string

createSvgTag(cellSize, margin) => string

createTableTag(cellSize, margin) => string

createASCII(cellSize, margin) => string

Helper functions for HTML. Note call make() before these functions.

ParamTypeDescription
cellSizenumberdefault: 2
marginnumberdefault: cellSize * 4
altstring(optional)

createSvgTag(opts) => string

ParamTypeDescription
optsobjectdefault: {}
opts.cellSizenumberdefault: 2
opts.marginnumberdefault: cellSize * 4
opts.scalablebooleandefault: false

renderTo2dContext(context, cellSize) => void

--

This implementation is based on JIS X 0510:1999.

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

@autharmor/uicommuni-design-system@conclurer/brickstaler-wallet@daivalogix/digital-verification-widget@thesis-co/mechamittens-extensionnode-qr-code-styling@frog-res/h-utils@infinitebrahmanuniverse/nolb-qrnanocurrency.js@everything-registry/sub-chunk-2510@polkadot-cloud/recipes-testtctipsvg-qrsvgqr.jssvg-image-editorweex-qrcodethanglv-qrcode-styling@buza_me/qr-code-styling@payping/utils@perseveranza-pets/freyaipanel-rntv-corejustride-qrcodekjua-revivediden3livebook-qr-codelogin-npm-packagelaborumexlambda-styled-qr-codemaximeeligendi@wfrog/utils@wojtekmaj/react-native-qr-svg@wojtekmaj/react-qr-svg@types/qrcode-generator@themaniacalfry/styled-qr-code-node@zeedo/widget@tedyno/cz-qr-payment@zoot-ai/widget@zootly/widgetaa-tyres-hotel-printaa-workorder-printaceblock-oidc-clientailipaycloudbasealipay-cloudbasealipay-cloudbase-extensionalipay-cloudbase-testalipay-cloudbase-vscodeangular2-qrcode-generatorangular2-qrcoderangular2-omnixell-libraryangular-qrcodeangular-qrcode-itatomax-connectorark-requestapps-ecommerce-component@chromapdx/qr-code-styling@ckho/qr-code-styling@abdul778/page-editor@7qr.codes/qr@axiasolar-js/react-qr@h7ioo/styled-qr-code-node@aiddroid/qr-code-styling@contember/admin@alexdigi/qr-code-stylingstyled-qr-codestyled-qr-code-nodestyled-qr-code-node-typescriptsqrcspace-vue3-qrcodetrioslibtokes-payments-component@binsky/passman-client-ts@byte.n/qrcode-vue3@charles-goode/qr-code-stylingyoteqi_qr_codezfinder-mw-directoryzfinder-mw-markdownvue3-qr-code-styled-componentvue3-qr-code-stylingvue3-qrcode-fixundirected-ordered-unchunked-qr-channelzk-types@likecoin/qr-code-styling@loskir/styled-qr-code-node@mechamittens/extension@nano.gift/nano.js@nightlylabs/qr-code@metaexplorer-mods/qr-code-genscan@mithrandirii/qr-code-styling@moh586/qr-code-vue3-dimobit@moh586/qrcode-generator-vue3@kakapolabs/kakapolabels@ray-js/ty-outdoor-utils@salt5932/styled-qr-code-node-fix@sayduck/viewer-jellyfish@rjseibane/qrcode@polkadot/react-qr@pillowstudio/qr-code-styling@polkadot/ui-qr@polkadot-cloud/recipes
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