##### Using every() ```js const arr1 = [1, 1, 1]; const arr2 = [1, 1, 1]; const arr3 = [1, 2, 3]; const arr4 = ['A', 'B', 'C']; const arr5 = ['A', 'B', 'D']; function numberArrayEquals(arr1, arr2) { return arr1.length === arr2.length && arr1.every((element, index) => arr2[index] == arr1[index]); } numberArrayEquals(arr1, arr2); //➞ true numberArrayEquals(arr1, arr3); //➞ false numberArrayEquals(arr4, arr5); //➞ false ```