[machinate]

Easy is almost an understatement; it's Alt+Hyphen. [Edit: My bad that's en-dash, can't tell the difference in this monospaced text field. Em-dash you have to hold shift.]

I guess on Windows it's Alt+0,1,5,1 on a numpad. Or you copy+paste from Character Map.

[e28eta]

To be pedantic: Opt-shift-hyphen for the em dash (longer one). Opt-hyphen only gets you an en dash.

[9dev]

…which is the appropriate character for ranges, i.e., page 1–2.

I find it a bit sad that using proper typography is now frowned upon, but it seems that ship has sailed.

[saagarjha]

One of the reasons I'm not on that page–I have a policy of using en dashes because I am lazy

[machinate]

Right, you sniped my edit. I don't know why I gave up my hn delay setting...

[SAI_Peregrinus]

Or you've had WinCompose installed for years and type Compose+hyphen+hyphen+hyphen. — is easy to type that way. The same works for Linux with a compose key enabled, WinCompose is a program to give Windows a compose key, and comes with default sequences including those found by default in most distro's XCompose list.

[etra0]

Big shout-out to WinCompose, it's the only way I found my keyboard usable while being bilingual :)

[notpushkin]

You can install a custom layout on Windows, like the one I made: https://typo.ale.sh/