Perfect Diamond

function perfectDiamond(input) {
    let n = Number(input);

   for (let i = 0; i <n; i++) {
    console.log(" ".repeat(n - (i + 1)) + '*' + "-*".repeat(i));
    }

    for (let i = n - 2; i >= 0; i--) {
        console.log(" ".repeat(n - (i + 1)) + '*' + "-*".repeat(i));
    }

    return;
}