Need Help (JavaScript)

Question

New to programming.

Can anybody help me out with the output to this JavaScript problem?

let x = 10;
console.log(--x);

Answer 1

The operation „—x“ means that first will be decremented 1 from the variable x and after that will be outputed with console.log. So the result is 9.

Answer 2

More details, the question is not clear, I don't see problems