When I see somewhat obtuse code like this, I often want to see how well I could refactor it using modern techniques. No frameworks or anything crazy, in this ca

When I see somewhat obtuse code like this, I often want to see how well I could refactor it using modern techniques. No frameworks or anything crazy, in this case just vanilla JS, but using current best practices and enhancements in the both the language and JS at the browser level. It's arguably a waste of time, but it does it always seems like a fun challenge. I'm sure I'm not alone in this. Is there a more constructive use of that time, while getting the same dopamine hit? I suppose the obvious answer is freelance markets, but I doubt many people are paying out for "just" refactoring.