js sort numbers descending order
// Sort Numbers in Descending Order function sortDescending(num) { return Number(num.toString().split('').sort((a, b) => b - a).join('')); //or: return parseInt(num.toString().split('').sort().reverse().join('')); } console.log(sortDescending(123)); // 321 console.log(sortDescending(1254859723)); // 9875543221