[WorldMaker]

Yeah, all three settings this article mentions at the top are correctly defaulted when using a jsconfig.json file instead of a tsconfig.json file: allowJs, checkJs, and noEmit.

Additionally, I don't know about other editors but I know that VS Code subtly adjusts some workspace detail defaults based on the presence of jsconfig.json over tsconfig.json.

It's slightly more than just a stylistic change, but yeah there's no "wrong answer" if you prefer tsconfig.json to jsconfig.json, especially if you think there may be a subset of files you wind up preferring TS syntax and want to transpile/type-strip in the future (dropping the "noEmit"). (If for some reason you need to do a bunch of generics, for instance, that's a lot easier with type-stripping from TS syntax than trying to squeeze in JSDoc. Also, maybe you'll bump into a situation where TS downleveling is helpful, for a while I had projects that needed downlevelIteration to support certain IE/Safari versions and letting TS downlevel that was a lot easier and cleaner than the Babel-based alternatives.)