qrgenjs

https://cyphrme.github.io/qrgenjs

An unofficial fork with minor tweaks to our favorite Javascript QR code generator.
https://github.com/nayuki/QR-Code-generator/tree/master/typescript-javascript

Github issue: nayuki/QR-Code-generator#155

Development

The demo (index.html) is with an older version, but it works and since the new version works differently we're keeping the old version.

1.8.0 Demo

All links are in this repo

The root files do not use 1.8.0, but to build it, this is how it is done:

(
	cd 1.8.0
tsc --strict --lib DOM,DOM.Iterable,ES6 --target ES6 *.ts 
esbuild qrcodegen.js --minify --outfile=qrcodegen.min.js && cat module_append.txt >> qrcodegen.min.js
)

UMD Module

See https://github.com/Cyphrme/UMD_tutorial. In short, esbuild has a bug with UMD so modules have to be manually done. See build.sh.

New

Truncate UMD from file to add it back in after minifaciton.

file=urlform.js match="//////////////////////////////Regex_match_for_truncation_for_umd" line_num=$(grep -n "$match" $file | cut -d : -f 1) echo "Line number for truncation: $line_num" head -n $(($line_num - 1)) $file > urlform_nomod.min.js # min.js avoids watch loop.

esbuild urlform_nomod.min.js --bundle --format=esm --platform=browser --minify --sourcemap --outfile=urlform.min.js #cat module_append.js >> urlform.min.js

Other Resources

Great article about how QR codes work: https://typefully.com/DanHollick/qr-codes-T7tLlNi

Why nayuki and not others?

Google's top result for "qrcode javascipt", https://github.com/davidshimjs/qrcodejs, is junk. It has alphanumeric encoding issues and the library hasn't been updated in 5 years despite a stream of issues.

Attribution, Trademark notice, and License

qrgen Copyright (c) Project Nayuki. (MIT License) https://www.nayuki.io/page/qr-code-generator-library

Cyphrme/QRGenJS