text: const digits = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
  
  for (let i = 0; i < digits.length; i++) {
    console.log(digits[i]);
  }
  
  // using for...in --> remove the counting but keep the index
  for (const index in digits) {
    console.log(digits[index]);
  }
  
  // using for...of --> remove the counting and the index. Access the "current" object item
  for (const digit of digits) {
    console.log(digit);
  }
  
  //
  const days = [
    'sunday',
    'monday',
    'tuesday',
    'wednesday',
    'thursday',
    'friday',
    'saturday'
  ];
  
  // your code goes here
  for (const day of days) {
    console.log(day[0].toUpperCase() + day.substring(1));
  }
  