diff options
Diffstat (limited to 'activesupport/lib/active_support/core_ext/enumerable.rb')
| -rw-r--r-- | activesupport/lib/active_support/core_ext/enumerable.rb | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/activesupport/lib/active_support/core_ext/enumerable.rb b/activesupport/lib/active_support/core_ext/enumerable.rb index 03efe6a19a..4501b7ff58 100644 --- a/activesupport/lib/active_support/core_ext/enumerable.rb +++ b/activesupport/lib/active_support/core_ext/enumerable.rb @@ -17,7 +17,6 @@ module Enumerable # The default sum of an empty list is zero. You can override this default: # # [].sum(Payment.new(0)) { |i| i.amount } # => Payment.new(0) - # def sum(identity = 0, &block) if block_given? map(&block).sum(identity) @@ -32,7 +31,6 @@ 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 if block_given? Hash[map { |elem| [yield(elem), elem] }] @@ -41,8 +39,10 @@ module Enumerable end end - # Returns true if the enumerable has more than 1 element. Functionally equivalent to enum.to_a.size > 1. - # Can be called with a block too, much like any?, so <tt>people.many? { |p| p.age > 26 }</tt> returns true if more than one person is over 26. + # Returns +true+ if the enumerable has more than 1 element. Functionally + # equivalent to <tt>enum.to_a.size > 1</tt>. Can be called with a block too, + # much like any?, so <tt>people.many? { |p| p.age > 26 }</tt> returns +true+ + # if more than one person is over 26. def many? cnt = 0 if block_given? @@ -55,7 +55,8 @@ module Enumerable end end - # The negative of the <tt>Enumerable#include?</tt>. Returns true if the collection does not include the object. + # The negative of the <tt>Enumerable#include?</tt>. Returns +true+ if the + # collection does not include the object. def exclude?(object) !include?(object) end |