Contents

module Enumerable
  # Standard in rails... See official documentation[http://api.rubyonrails.org/classes/Enumerable.html]
  # Modified from rails 2.3 to not rely on size
  def sum(identity = 0, &block)
    if block_given?
      map(&block).sum(identity)
    else
      inject { |sum, element| sum + element } || identity
    end
  end unless method_defined? :sum

end

Version data entries

73 entries across 73 versions & 3 rubygems

Version	Path
backports-1.11.2	lib/backports/rails/enumerable.rb
backports-1.11.1	lib/backports/rails/enumerable.rb
backports-1.11.0	lib/backports/rails/enumerable.rb
backports-1.10.3	lib/backports/rails/enumerable.rb
backports-1.10.2	lib/backports/rails/enumerable.rb
backports-1.10.1	lib/backports/rails/enumerable.rb
backports-1.10.0	lib/backports/rails/enumerable.rb
backports-1.9.0	lib/backports/rails/enumerable.rb
backports-1.8.3	lib/backports/rails/enumerable.rb
backports-1.8.4	lib/backports/rails/enumerable.rb
backports-1.8.2	lib/backports/rails/enumerable.rb
backports-1.8.1	lib/backports/rails/enumerable.rb
backports-1.8.0	lib/backports/rails/enumerable.rb