> ESM modules are challenging to mock > I definitely would say I understood require better ESM modules are in many ways "harder" to use than commonjs, but I t

> ESM modules are challenging to mock > I definitely would say I understood require better ESM modules are in many ways "harder" to use than commonjs, but I think this comes down to something slightly intangible but very similar to the static-typing -vs- duck-typing discussion (duck-typing is more obviously intuitive and quick-to-do-what-you want, but static-typing has more wide-reaching architectural benefits for scaling projects). CommonJS is a more "intuitive" design: what you might expect someone to design first-time-around. ESM is a more thought-through design: the initial "hurdles" to its use bring long-term benefits. > ESM modules are challenging to [...] monkeypatch This seems like a feature though > I feel like the ESM implementation is more "magic" than require How so? I'd say I feel the opposite. > importing a .json file Is this supported by browsers or is it a NodeJS extension?