So this is something I’ve seen two large camps pitted against each other for. Programmers should always be responsible for the code they write and should always be actively trying to write responsible code in itself. I think everyone can get behind that without much quarrel. But! One camp tends to argue that the programmer should ensure there is ~absolutely~ no way for things to blow up while the other camp argues that the programmer should place ‘checks’ in the code in the possibility that it does.
Hopefully the issue is clear.
Should a programmer place checks in their code to not only protect users in the future, but also themselves? “Why wouldn’t you?” your reaction may be. Well, you might have a complex piece of code that would take a lot of resources to constantly check will work properly. The goal is to make sure your code is exception-safe as much as possible, but there is always someone out there who will holler out “at what cost?!” If something is expected to work one way, that should be the ~only~ way it will ever work they argue!
It boils down to a kind of elite purist paradigm vs a human-error safe paradigm. Both have merit!
I made a pretty timely and amateur mistake today because I was running the purist paradigm. I’ll talk about how I should have placed checks to save myself and evidently my boss about 2 hours of time. But at the same time the issue could’ve been easily avoided and no check at all would’ve been needed if I didn’t rely on my faulty memory.
Continue reading →