how do you just delete a file you have highlighted in the finder without having to use the mouse.

delete doesn't do it so i looked it up and they say Command-Delete is supposed to do it, but it didn't for me :/

How do you delete a file you have selected in a Finder window, without using the mouse?

delete doesn't do it.
When I looked it up, I was said that command-delete is supposed to do it, but it doesn't work for me.