On two occasions I have been asked, “Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?” I am not able rightly to apprehend the kind of confusion of ideas that could provoke such a question.
—Charles Babbage, Computer Pioneer
Going Off the Rails
Railway Oriented Programming (ROP) is an analogy invented by F#’s premier educator, Scott Wlaschin. It describes a programming philosophy in which we embrace errors as a core part of program flow, rather than exiling them to the separate domain of exception handling. Scott didn’t invent the technique, but he did ...