Question

I got an problem i’d like to solve.
This expression works as long as x is positive

x > 0 ? x - y : x + y;

When it gets negative however this is where the problem begins.
So i thought of

x !=0 & x < 0 ? x - y : Math.abs(x - y)*-1) 

but this gets me nowhere and i solved it by:

if (x > 0 && x - y > 0) {
    x -= y;
} else if (x < 0 && x + y > 0) {
    x += y;
} else {
    x = 0;
}

this however is long and appears not elegant.
any way to make this shorter and efficient with ternary operations?

Answer 1

x = x >=0 ? x - y : x + y;
x = x < 0 ? 0 : x;

or

x = Math.max(x >= 0 ? x - y : x + y, 0);