Thanks. That's pretty cool. But I guess I misspoke, what I meant to ask was how are they doing stuff like this: https://developer.mozilla.org/en-US/docs/Web/Jav

Thanks. That's pretty cool. But I guess I misspoke, what I meant to ask was how are they doing stuff like this: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl https://developer.mozilla.org/en-US/docs/Web/JavaScript/Refe... I.e., date/time formatting, number formatting, and so on.