[Codewars] Return Negative

Q. In this simple assignment you are given a number and have to make it negative. But maybe the number is already negative?

 

S.

num makeNegative(n) => n < 0 ? n : -n;

 

+

절댓값에 (-) 붙이는 방법, isNegative 이용하는 방법 등

num makeNegative(n) => -n.abs();

num makeNegative(n) => n.isNegative ? n : -n;