Stars Square

function stars(input) {
    let star = "*";
    let space = ` `;
    let num = Number(input.shift());
    let numER = Number(num - 2);
    console.log(star.repeat(num));
    for (let i = 1; i <= num - 2; i++) {
         console.log(star,space.repeat(num-2),star);
    }
    console.log(star.repeat(num));
}