Contents

class Fixnum
  
  # Factorial of number
  # 5.factorial == 5 x 4 x 3 x 2 x 1 == 120
  #------------------------------------------------------------------------------
  def factorial
    return 1 if self.zero?
    (1..self).inject(:*)
  end
  
  #------------------------------------------------------------------------------
  def as_boolean
    (self > 0) ? true : false
  end

end

Version data entries

4 entries across 4 versions & 1 rubygems

Version	Path
dm_ruby_extensions-1.0.7	lib/dm_ruby_extensions/extend_fixnum.rb
dm_ruby_extensions-1.0.6	lib/dm_ruby_extensions/extend_fixnum.rb
dm_ruby_extensions-1.0.5	lib/dm_ruby_extensions/extend_fixnum.rb
dm_ruby_extensions-1.0.0	lib/dm_ruby_extensions/extend_fixnum.rb