Same, I thought this is gotta be a problem for someone who uses notepad as their main editor.

meanwhile vim:

Yeah, it will tell you that it existed a semicolon... 😁

it would still be confusing why all semicolons are highlighted

That means that detection was added explicitly because this prank was done enough that it was worth it to add.

I don't know why I'm here commenting about this, but I love type, so:

Hyphen (-): the short one, used for hyphenated words. fire-eaters. Close-up.

en-dash (–): slightly longer, traditionally the length of a lowercase"n" in the typeface. Used between for things like a timeframe. 10–11:30, August–October

em-dash (—): the longest of the three, and the length of a lowercase "m". Used as a punctuation mark to denote a side comment or to abruptly cut off a sentence. "It's a great punctuation mark—in fact I overuse it—but it's still useful." "Hey where are you going with that giant—"

I didn't bother to double check the definitions, so there might be more specific rules, but these are my rules of thumb.

Some mac apps have some quirks, the default note app was probably not meant for pasting code in, but when you do it changes the quotes and makes them all fancy. Drives me up the wall and there's nobody to blame but me.

Ah, my favorite character. I abuse the hell out of the em-dash.

Which character. Does it need Combination of keys or a Single key.

That's pretty neat, but also means he will never be able to log into things on mobile

Or any coding software really. Does this guys friend code in notepad?

Most of the time. Sometimes it can lead to code that is ambiguous and ASI picks the wrong way to interpret it.

https://stackoverflow.com/questions/25088708/what-rules-must-i-follow-to-write-valid-javascript-without-semicolons

In Unicode, it is separately encoded as U+037E ; GREEK QUESTION MARK, but the similarity is so great that the code point is normalised to U+003B ; SEMICOLON, making the marks identical in practice.

Source: https://en.wikipedia.org/wiki/Question_mark

I'm still curious whether it would be accepted by the code interpreters / compilers of various languages. I'm not bold enough to assume they all normalise properly.

Unicode should have enforced the principle of using the same encoding for similar looking characters like they did with CJK instead of allowing bullshit like the Cyrillic "o" or the Greek question mark.