How to Use Em Dashes (–), En Dashes (–), and Hyphens (-)

I'm just gonna say it: this does not matter. Just use whatever you want. If you're afraid that someone is going to think less of you for it: the people who matter won't.

For those who downvoted this - how does a millimeter of difference in the length of a line matter?

Well-meaning can vary if you don't put spaces around your dashes, and a well—meaning writer wants to ease the job of the reader.

ıt might simpıy not matter though, a miııimeter here and there, ı suppose.