text: const array1 = [1, 2, 3, 4];
  
  // fill with 0 from position 2 until position 4
  console.log(array1.fill(0, 2, 4));
  // expected output: [1, 2, 0, 0]
  
  // fill with 5 from position 1
  console.log(array1.fill(5, 1));
  // expected output: [1, 5, 5, 5]
  
  console.log(array1.fill(6));
  // expected output: [6, 6, 6, 6]
  