Not using tooling also means no module system and no dependency management. Which likely also means no unit tests. And no minification. No linting or type check

Not using tooling also means no module system and no dependency management. Which likely also means no unit tests. And no minification. No linting or type checking. No third party code except maybe a few bundles you downloaded once and will never update that barf all over the global scope. I get the appeal of partying like it's 1999 but as someone who used JS in the 1990s these are things I would not want to live without. I'm perfectly capable of writing ES3 code without any tooling but I'd rather not.