As I said, most publications would use commas, and they'd put the dollar sign in front of the value.

That's a US thing. in the EU we use periods and currencies go after the value.

Well, the currency in this case was presumably USD, so I don't think it's relevant.

But in any case, the convention for both the Euro and the USD is to put it in front of the number when writing in English, according to EU standards for internal writing. If there's another standard that just says "do whatever" then I'd love to see it.

And again, as I believe I mentioned, most publications would put the dollar sign in front of the number, and use commas. Dots are acceptable, but I can't find a lot of publications that do it the way it's written in the linked article.

https://en.wikipedia.org/wiki/Euro_sign#Use

It’s used in Apple’s programming language swift.