Solving Hackerrank's Diagonal Difference Problem Using JavaScript

In today's video, we discuss how to go about solving the 'diagonal difference' algorithm problem on hackerrank.com To be more specific, we focus on writing a for loop with has more than one iterators. note: for the last return statement, instead of using the if statement to return a positive number, a more convenient way would be using the Math.abs() method to convert the `sum` to its absolute value.