const timestamp = Date.now().toString(); // Current timestamp in milliseconds
const randomNum = Math.random().toString().substring(2); // Generate random number string without "0."
const baseString = timestamp + randomNum;
let uniqueId = '';
for (let i = 0; i < length; i++) {
    uniqueId += baseString.charAt(Math.floor(Math.random() * baseString.length));
}