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

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650 points Stratoscope | 1 comments | 27 Mar 25 20:19 UTC | HN request time: 0.599s | source
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A_D_E_P_T ◴[27 Mar 25 20:41 UTC] No.43497927[source]▶
AFAIK most computer keyboards don't have em dashes. Rather than hit ALT+0151 every time, I've always just strung along two hyphens, like: --

Absolutely proper and correct use of em dashes, en dashes, and hyphens is, to me, the most obvious tell of the LLM writer. In fact, I think that you can use it to date internet writing in general. For it seems to me that real em dashes were uncommon pre-2022.

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kingo55 ◴[27 Mar 25 21:36 UTC] No.43498472[source]▶
More sophisticated clients require we use dashes correctly. I first encountered it pre-pandemic, so in professional contexts it's not a sure-fire signal of LLM use — Should you see em dashes correctly used in the Hacker News comments or Reddit, for that matter, then it's pretty reliable tell... Usually. ;)
replies(2): >>43498529 #>>43500111 #
1. necovek ◴[27 Mar 25 21:43 UTC] No.43498529[source]▶
As I mentioned above, I've had them easily accessible with a keyboard layout for >20 years on all the systems I've used — the only caveat that I find it really ugly with no spaces around em-dashes, which is usually recommended for English.
replies(1): >>43498751 #