How can I unhighlight everything highlighted by `highlight-regexp`?

Question

If I do this:

M-x highlight-regexp \cite{\(.+\)}

then pick a color. Later, if want to unhiglight all previous higlights, I have to do them one by one, e.g.

M-x unhighlight-regexp \cite{\(.+\)}

Is there not a command to un-highlight all?

Answer 1

The docs for unhighlight-regexp suggest using C-u and then M-x unhighlight-regexp to remove all of them. (credits: @amitp)