ln 3,Col 35 in Read me it should be ES5

Practice: ES5 Classes

In this practice, you will use ES6 class syntax to define classes and
monkey-patch an existing class.

The test specs need an additonal test unit to check for arrays of different lengths
currently this implementation passes the test units but it shouldn't

Array.prototype.isEqual = function (arr) {
   

    for (let i = 0; i < this.length; i++) {
        if (this[i] !== arr[i]) {
            return false;
        }
    }
    return true;
}

const array1 = [1, 2, 3];
const array2 = [1, 2, 3, 4];

console.log(array1.isEqual(array2)); // This would incorrectly return true without length check

In this example, without checking the lengths, the isEqual method would compare the elements [1, 2, 3] in array1 with [1, 2, 3, 4] in array2. The loop would iterate three times, find matching elements, and return true, even though the arrays are not equal.