shuffle()
      Creates a new array with the items in a random order.
      
        This function is valid in
        v2.0.0 to v2.24.3.
        This function has been downloaded 80 times.
      
      
      
      
      Parameter
                        
            
              {Array}
              arr
                          
            Array to copy and shuffle.
           
              
      Returns
      
        {Array}
        Shuffled copy of arr.
       
              Required Function
        This function directly requires the following function which is included automatically:
        
                      - 
              
has()
              Every object descended from Object inherits the hasOwnProperty method. This method can be used to determine whether an object has the specified property as a direct property of that object; unlike the in operator, this method does not check down the object's prototype chain.