Yeah, it was a bad example. A better one: Preact lets you specify HTML classes using "class", React requires you to use "className". So it would be easy to trip

Yeah, it was a bad example. A better one: Preact lets you specify HTML classes using "class", React requires you to use "className". So it would be easy to trip up on that dev/prod difference. EDIT: damn it, that's a bad example as well, because it would work fine if you use React for dev (which takes className) and Preact for prod (which uses either). I still think it's a bad idea, though.