Module: Enumerable

Instance Method Summary collapse

#each_random(&block) ⇒ Object

Calls block once for each element in self in random order, passing that element as a parameter.
#map_random(&block) ⇒ Object

Invokes block once for each element of self in random order.
#pick ⇒ Object

Choose and return a random element of the Enumerable.
#shuffle ⇒ Object

Return an array of the elements in random order.

Calls block once for each element in self in random order, passing that element as a parameter.



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# File 'lib/rand.rb', line 24

def each_random(&block)
  shuffle.each(&block)
end

Invokes block once for each element of self in random order. Creates a new array containing the values returned by the block.



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# File 'lib/rand.rb', line 30

def map_random(&block)
  shuffle.map(&block)
end

Choose and return a random element of the Enumerable.

[1, 2, 3, 4].pick  #=> 2 (or 1, 3, 4)



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# File 'lib/rand.rb', line 12

def pick
  entries.pick
end

Return an array of the elements in random order.

[1, 2, 3, 4].shuffle  #=> [3, 4, 1, 2]



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# File 'lib/rand.rb', line 18

def shuffle
  entries.shuffle
end