1

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"]]
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2 Answers 2

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4

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)
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4 Comments

+1 Never noticed I should flatten the result. Still you can do it in a shorter manner, take a look at my answer.
@Mehdi Kumar Ivaylo Strandjev solution is good.. Use that :)
@checkit Thanks that helped a lot. I actually meant to make it 2-dimensional because I thought it will be more easier with it. But I see that I don't need that. an a.zip() will do the job. Thank you
@checkit thank you but in fact you were the first one to provide a working solution. So you deserve the accept. Still maybe edit your answer to suggest the shorter version for future generations.
2

Try this:

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

Also you can do it with a single zip:

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