This is a heavily interactive web application, and JavaScript is required. Simple HTML interfaces are possible, but that is not what this is.
Post
Ned Batchelder
nedbat.com
did:plc:w225kiqaw67ddpex4jmoo7rs
A useful class that is hard to test thoroughly, and my failed attempt to use Hypothesis to do it: https://nedbatchelder.com/blog/202512/a_testing_conundrum.html
2025-12-18T16:42:08.435Z