Just ran across this question on Stack Exchange by DJ McMayhem, which pointed out a great tip for commenting blocks of code. Say you have
int main()
{
int answer=42;
string question;
for(int i=0; i<answer; ++i) {
question += "what do you get";
}
return answer;
}
and want to comment out the question. I used to do that by putting the cursor on line 4 (string question
), hitting ma
to save my place in mark a
, moving down to line 7 (the end of the for
loop), and doing :'a,./s/^/\/\//<Enter>
.
Thanks to DJ McMayhem, I can now do that by starting on line 4, hitting v3j
to select the lines in question, and doing :norm0i//<Enter>
. Result:
int main()
{
int answer=42;
// string question;
// for(int i=0; i<answer; ++i) {
// question += "what do you get";
// }
return answer;
}
Original: 20 keystrokes (counting Enter, but not counting Shift presses as separate keystrokes)
New: 13 keystrokes 🙂
My next adventure is to wrap :normal
in a function so I can use :N
or some such, for a savings of a further three keystrokes!