Macs have two possible ways. If you have key repeat enabled, option+shift+dash. Some newer Mac users may have the mode on where holding a key pops up an iOS-sty

Macs have two possible ways. If you have key repeat enabled, option+shift+dash. Some newer Mac users may have the mode on where holding a key pops up an iOS-style bubble of alternate options, in which case they will just hold hyphen.