Methods

Random::Range

Public Instance Methods

at_rand() click to toggle source

Return a random element from the range. 

  (1..4).at_rand           #=> 2
  (1..4).at_rand           #=> 4

  (1.5..2.5).at_rand       #=> 2.06309842754533
  (1.5..2.5).at_rand       #=> 1.74976944931541

  ('a'..'z').at_rand       #=> 'q'
  ('a'..'z').at_rand       #=> 'f'

CREDIT: Lavir the Whiolet 

     # File lib/more/facets/random.rb, line 119
119:     def at_rand
120:       if first.respond_to?(:succ)
121:         to_a.at_rand
122:       elsif Numeric===first && Numeric===last
123:         number = (last - first) * Random.number + first
124:         (number == last && exclude_end?) ? first : number
125:       else
126:         nil
127:       end
128:     end

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