Ruby queue implementation

queue.rb

#!/usr/bin/env ruby

class Queue
  def initialize
    @arr = []
  end
  
  def enqueue(val)
    @arr << val
  end
  
  def dequeue
    @arr.shift
  end
  
  def each
    @arr.each { |e| yield e }
    # while e = dequeue
    #   yield e
    # end
  end
end

if __FILE__ == $0
  q = Queue.new
  (1..10).each { |i| q.enqueue i }
  q.each { |e| p "Element is: #{e}" }
end