Resequence the array : Array Extension « Array « Ruby

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Ruby » Array » Array Extension   Resequence the array class Array   def randomize     arr=self.dup     arr.collect { arr.slice!(rand arr.length) }   end   def randomize!     arr=self.dup     result = arr.collect { arr.slice!(rand arr.length) }     self.replace result   end end x = [1, 2, 3, 4, 5] y = x.randomize      # [3, 2, 4, 1 ,5] x.randomize!         # x is now [3, 5, 4, 1, 2] class Array   def pick_random     self[rand(self.length)]   end end   Related examples in the same category 1.  Add your method to system data type 2.  Add a new method to Array class 3.  Add shuffle method to Array class 4.  strip values from array 5.  Extract array in place 6.  Array cartesian 7.  Add method to Array class to convert an array to a hash 8.  each from both sides 9.  Extends array comparsion method 10.  Override array method 11.  Add new operator for Array 12.  Add subset and superset operator for Array 13.  Set permutation for Array 14.  Use hash to count elements in an array 15.  convert array to a hash

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