Finding out current index in EACH loop (Ruby) [duplicate]

Possible Duplicate:
Automatic counter in Ruby for each?

I want to find out the current index while i am in the each loop. how do i do so?

X=[1,2,3]

X.each do |p|
 puts "current index..."
end

X.each_with_index do |item, index|
  puts "current_index: #{index}"
end

x.each_with_index { |v, i| puts "current index...#{i}" }

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