ruby - How to convert n arrays of length m into m arrays of length n? -


I am trying to change it: 

  [[1, 2, 3] , 4], [5, 6, 7, 8], [9, 10, 11, 12]]

In: 

  [[1 , 5, 9], [2, 6, 10], [3, 7, 11], [4, 8, 12]]

Is there a function to do this? If it is not, then what is the low and cleaner way?

The underlying method you are looking for


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