Solving Kattis Missing Numbers Problem

[TauhidIslam-ck]

yeap in js : const ChackThe_Numbers = function (numbers) {
const missingNumbers = [];
const [TheBiggestNum] = numbers.sort((a, b) => b - a);
for (let x = 1; x <= TheBiggestNum; x++) {
if (!numbers.includes(x)) missingNumbers.push(x);
}
return missingNumbers.length ? missingNumbers : 'good Job';
};
console.log(ChackThe_Numbers([1, 2, 3, 4, 5, 6, 7, 10, 9]));