vim copy-paste buffers

Question

Suppose I have the following text (I have numbered the lines for clarity) and the cursor is at the beginning of the 5th line:

1
2 var x = 1;
3 var y = 2;
4 
5 if (true) {
6     print("Hey!");
7 }

Okay, now I try to cut the lines 5, 6, 7 (all that "if" thingy). For that purpose I do: Vjjd. Now it appears I am at the beginning of the 4th line which is an empty string.

My question: is it possible at this moment to remove the 4th line without loosing previously copied lines 5, 6, 7 (that "if" thingy), so that I'll be able to paste them somewhere else, say, on the 1st line later?

Answer 1

You can always yank or delete into a register using "n, where n is just about any key. See a list of available registers in "help registers", some of which have special meaning. For example, you could do:

> "a3dd (to delete the last three lines into a register called a)
> dd (to delete the blank line) 
> "ap (to paste the a register)

You can also use Vjj"ad, to match what you were doing in the original question.

Answer 2

Yes: You can use the blackhole buffer register: type "_dd