Randomizzare un array con ruby on rails

Posted on 18. May, 2007 by Administrator in Ruby on rails, tutorials


Questo tutorial ci mostra come randomizzare gli elementi di un array con ruby on rails

# external...  
def shuffle(arr)  
  arr.sort {|a, b| rand <=> 0.5 }  
end 
 
# ...or as part of Array  
class Array 
  def shuffle  
    self.sort {|a, b| rand <=> 0.5 }  
  end 
end  


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