There's still a lot of magic floating around in code bases. I still see window passed into functions in the name of efficiency. You'll still see all sorts of va

There's still a lot of magic floating around in code bases. I still see window passed into functions in the name of efficiency. You'll still see all sorts of varied opinions on html/css efficiency. It's certainly gotten better as large frameworks have stripped out the magic code, but you can find it when you update a site that was built a few years ago.