This is a heavily interactive web application, and JavaScript is required. Simple HTML interfaces are possible, but that is not what this is.
Post
Jan Marthedal Rasmussen
janmr.com
did:plc:vu6qczmz4fwvt5hylbxjlcd6
A leap year check in three instructions https://hueffner.de/falk/blog/a-leap-year-check-in-three-instructions.html
2025-05-22T11:57:37.045Z