Question

I have these arrays of arrays :

array0 = [["1"], ["2"], ["3"],…]

array1 = [["a"], ["b"], ["c"],…]

array2 = [["pap"], ["pop"], ["pip"],…]

I want to push every element in every array, to the first array so the output should be:

output = [["1", "a", "pap"], ["2", "b", "pop"], ["3", "c" ,"pip"]]

Answer 1

First do flatten on each array to get single dimension array. Then use zip to get 2-dimension array each having 3-elements

array0.flatten.zip(array1.flatten, array2.flatten)

Shorter way of doing the same: (Solution given by @Ivaylo Strandjev)

array0.zip(array1, array2).map(&:flatten)