I stand corrected.

I am apparently uncommon. :P

It may also be a language thing. All Google search results (well, the first page of 'em) referred to Java and C#.

"Jagged array" is an establish term but that means an array which has sub-arrays of uneven length.

A 'jagged' array is commonly known as a nested array.

( A jagged array is commonly unknown .. )

TRY NOT TO PARSE, STRINGIFY, OR USE ANY ARRAY METHODS (array.length is ok)

Don't just tell us. Enforce it. Otherwise, people will anyway. ( So their solutions will be shorter, less prone to bugs, more readable and more maintainable than yours .. )

This is basically https://www.codewars.com/kata/sum-all-the-arrays without the "ignore non-number" part. So it's a duplicate.

Needs random tests.

Yeah, I guess it is not so crystal clear from the title, at least to not native speakers like me, what it is meant by "next bigger", but glad you made it and thanks for your time :)

I was initially confused because I thought it was asking for the largest possible number, which was much easier.

But picking the next larger number is a harder. I did it. It was difficult. But thumbs up!