Question:

Which of the following is best described as a block?

1)  my_array = [1, 2, 3]
    my_array.each {|i| puts i*i}

2)  def double(n)
      return n * 2
    end

3)  def welcome
        puts "Welcome to Ruby!"
    end

4)  city = ["London", "Paris", "Belfast", "Rome"]

Answers:


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