21. It's printed as an em dash , but the term " em dash " is not mentioned. 22. The only option this precludes is the spaced em dash , which is probably the least common. 23. The differences between a hyphen, an en dash, and an em dash are old typographical distinctions. 24. :: : Millions of typists already know how to enter an em dash : with two hyphens. 25. :: You are correct that em dashes shouldn't be used with spaces ( see WP : MOSDASH ). 26. A nitpicky comment : Some of the em dashes have spaces on either side and some do not. 27. For example, the QWERTY keyboard typewriter did not include keys for the en dash and the em dash . 28. The usage of the em dash ( ) can overlap the usage of the ellipsis, especially in dialogue. 29. Because Wikipedia content can be repurposed in unpredictable ways, isn't it best to stay with the classic em dash ? 30. Here's an em dash :-
