> most JavaScript setups require recompiling a whole file and likely reloading the whole page to test With most setups nowadays (create-react-app/Webpack, Parc

> most JavaScript setups require recompiling a whole file and likely reloading the whole page to test With most setups nowadays (create-react-app/Webpack, Parcel, etc.) and "hot-module reloading" that's no longer really the case... ...but that doesn't take away from your point, because it can have some truly odd effects on the debugger haha