qrCreates a QR code from stdin
qr is an optional builtin which generates a PNG format
image based on the input from stdin. qr must be run as a
method.
<stdin> -> qr -> <stdout>» out "Hello, World!" -> qr |> qr.png» out "Hello, World!" -> qr -> open-imageqr sets stdout’s data-type to be “image”, which is
defined in with the open-image optional builtin. So if you
have that disabled then you may have to cast the output in
some circumstances.
cast:
Alters the data-type of the previous function without altering its
outputopen-image: Renders bitmap image data on your
terminalThis document was generated from builtins/optional/qr/qr_doc.yaml.
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Last built on Tue Nov 10 18:11:59 UTC 2026 against commit 7547c407547c4045d7ae61ca6f41f9080b9469f4eceb252.
Current version is 7.4.2002 (unknown) which has been verified against tests cases.