diff options
Diffstat (limited to 'activesupport/lib/active_support/core_ext/enumerable.rb')
| -rw-r--r-- | activesupport/lib/active_support/core_ext/enumerable.rb | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/activesupport/lib/active_support/core_ext/enumerable.rb b/activesupport/lib/active_support/core_ext/enumerable.rb index f76ed401cd..f1103029c8 100644 --- a/activesupport/lib/active_support/core_ext/enumerable.rb +++ b/activesupport/lib/active_support/core_ext/enumerable.rb @@ -9,7 +9,7 @@ module Enumerable # # Example: # - # latest_transcripts.group_by(&:day).each do |day, transcripts| + # latest_transcripts.group_by(&:day).each do |day, transcripts| # p "#{day} -> #{transcripts.map(&:class).join(', ')}" # end # "2006-03-01 -> Transcript" @@ -88,21 +88,21 @@ module Enumerable # => { "nextangle" => <Person ...>, "chade-" => <Person ...>, ...} # people.index_by { |person| "#{person.first_name} #{person.last_name}" } # => { "Chade- Fowlersburg-e" => <Person ...>, "David Heinemeier Hansson" => <Person ...>, ...} - # + # def index_by inject({}) do |accum, elem| accum[yield(elem)] = elem accum end end - + # Returns true if the collection has more than 1 element. Functionally equivalent to collection.size > 1. # Works with a block too ala any?, so people.many? { |p| p.age > 26 } # => returns true if more than 1 person is over 26. def many?(&block) size = block_given? ? select(&block).size : self.size size > 1 end - + # The negative of the Enumerable#include?. Returns true if the collection does not include the object. def exclude?(object) !include?(object) |