Question

I have an array loading a list of games. Currently it is being sorted like this:

A   B    C
D   E    F

Now I would like to sort it like the following:

A  D
B  E
C  F

How can I do this please? I have tried using chunk and even slice but no success.

Answer 1

Simple slice and transpose:

a = %w{A B C D E F}
p a.each_slice(3).to_a.transpose

# => [["A", "D"], ["B", "E"], ["C", "F"]]

The each_slice(3) will need to be adjusted for the dimensions of the source array and final matrix.