Henry Savr wrote:
> Here it is:
>
> def array_101
>   for i in [0 ... self.length]
>     puts "#{i} => #{self[i]}"
>   end
> end

class Array
  def array_101
    each_with_index{|e,i|
      puts "#{i} => #{e}"
    }
  end
  def array_102
    puts (0...self.size).zip(self).map{|a| a.join(' => ')}
  end
end