What Is Not Defensible Programming?

Expect that you will have all kinds of wild input from your users. And be clear about your expectations. If you are going to fail, fail early and tell people what the problem is so they can address it. So this is an example of what is not defensible programming. Something else you mention in the category of defensible programming is avoiding no values. I have? Li, something like, like, how tis owork? You may me geve some practical examples of why that matters and how to go about it.