I respect your opinion, and I believe that excluding checks for .js files in ESLint settings might be a somewhat regrettable choice. ESLint provides various rules that help maintain code conventions, and these rules still hold significant meaning for files that do not use TypeScript. For example, rules like import/order and prettier can greatly enhance code readability and maintain consistency within the project. From this perspective, I think it is more desirable to apply ESLint checks to all files.
_Originally posted by @SEOKKAMONI in https://github.com/toss/suspensive/pull/1326#discussion_r1807385579_