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rubyenumerable

How to iterate multiple enumerables in ruby?

I know two arrays can be zipped and the result can be iterated with #each. But how do you do it with an unknown number of enumerables? Let's say

anand = %w(1-0 0.5-0.5 0.5-0.5 1.0)
carlsen = %w(0-1 0.5-0.5 0.5-0.5 1.0)
kramnik = %w(0.5-0.5 0.5-0.5 0.5-0.5 1.0)
players= [anand, carlsen, kramnik]
#something smart

players.each{|round|puts round} #first line should be  "1-0 0-1 0.5-0.5"
Solution 
  • players.transpose.map {|a| a.join(" ")}