How do I duplicate a whole line in Emacs?

Question

I saw this same question for VIM and it has been something that I myself wanted to know how to do for Emacs. In ReSharper I use CTRL-D for this action. What is the least num

Answer 1

Place cursor on line, if not at beginning do a CTRL-A, then:

CTRL-K

CTRL-K

CTRL-Y

CTRL-Y