Shortcut key for em dash?

Yeah, but that's an en dash.

- dash - used for a minus sign for example

- hyphen - used for hyphenating words, like re-enter

— en-dash - used with a range of numbers, like 54—56

—— em-dash - I can't make one, but it should be lengthier than the en-dash and is used for parenthetical statements. The cat in the hat—not to be confused with the story of the same name—bleh dee blah.

So any ideas on how to make an em-dash and its shortcut key?

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Hmm. Looks like the en-dash doesn't work in Safari.

Option - hyphen = en-dash in Pages. Option - shift - hyphen = em-dash.

But the en-dash doesn't work in Safari. No wonder I was getting confused!!

"But the two first ones do look different! The second looks a tiny bit shorter than the first one."

I noticed that too and even brought the hyphens together. I decided it was an optical illusion, but now that you pointed it out, it isn't.

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– en dash (option-hyphen)
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When I was editing a Wikipedia article with Safari, the en-dash appeared in the edit window as a tiny hyphen, but the final result on the Wiki page appeared as an en-dash should.

So is this an error with Safari then? TextEdit as well shows the option-hyphen as a shorter dash than a normal hyphen.