const random = (length = 8) => {
// Declare all characters
let chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
// Pick characers randomly
let str = '';
for (let i = 0; i < length; i++) {
str += chars.charAt(Math.floor(Math.random() * chars.length));
}
return str;
};
console.log(random()); // JgKGQEUx
console.log(random(12)); // ttwbeshkYzaX
console.log(random(20)); // zZN7uH9pPjhJf30QNus5