send/app/ui/qr.js

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JavaScript
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const raw = require('choo/html/raw');
const qrcode = require('../qrcode');
module.exports = function(url) {
const gen = qrcode(5, 'L');
gen.addData(url);
gen.make();
const qr = gen.createSvgTag({ scalable: true });
return raw(qr);
};