I’ve seen undefined make it all the way to the backend and get persisted in the DB. As a string.
JS as a language just isn’t robust enough and it requires a level of defensive programming that’s inconvenient at best and a productivity sink at worst. Much like C++, it’s doable, but things are bound to slip through the cracks. I would actually say overall C++ is much more reasonable.
This is where I know that, some people, are not actually programming in either of these languages, but just writing meme driven posts.
JS has a few footguns. Certainly not so many that it's difficult to keep in your head, and not nearly as complex as C++, which is a laughable statement.
You've "seen null make it to the database," but haven't seen the exact same thing in C++? Worse, seen a corrupted heap?
In C++, there's only one null, nullptr. But most types can never be null. This is actually one area where C++ was ahead of the competition. C# and Java are just now undoing their "everything is nullable" mistakes. JS has that same mistake, but twice.
It's not about complexity, although that matters too. C++ is certainly more complex, I agree, but that doesn't make it a more footgunny language. It's far too easy to make mistakes in JS and propagate them out. It's slightly harder to make mistakes in C++, if you can believe it. From my experience.
It's like people just talk in memes or something.
This is how a lot of discourse feels these days. People living in very different realities.
Though in this case, seeing the most complex C++ app they've built would illuminate what's going on in theirs.
