Codewars 8 Kyu Implement Array Net Worth 2026: Salary, Income & Wealth

Code along with me as we solve 'Sum of differences in

using concat() and reduce() on this one.

this one uses a for() loop, an if() statement, and the join() method kata link: ...

this one implements a filter() method from scratch.

this one has the reduce() method and the Math.floor() function.

another .split() video; seems like .split() is a pretty common method.

this one uses the push() method push() info: ...

standard example of using the reduce() method.

this one uses the

Code along with me as we solve 'Add item to an

we use the reduce() method in this one reduce() info: ...

here we use reduce() and the unary plus operator.

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