Ruby - collect same numbers from array into array of arrays

Question

I have created a very ugly script to collect same numbers from an array. I don\'t think this is a very Ruby way :) Anyone could provide a more clean solution?

ar         


        

Answer 1

just another oneliner

arr = [5, 5, 2, 2, 2, 6, 6] 
arr.uniq.map {|e| [e]*arr.count(e) }
# => [[5, 5], [2, 2, 2], [6, 6]]