From 484e1c65d8710faeb9f08d33898dc329683b4dab Mon Sep 17 00:00:00 2001 From: David Heinemeier Hansson Date: Sun, 2 Apr 2006 16:28:30 +0000 Subject: Added docs for to_proc git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@4132 5ecf4fe2-1ee6-0310-87b1-e25e094e27de --- activesupport/lib/active_support/core_ext/symbol.rb | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'activesupport/lib') diff --git a/activesupport/lib/active_support/core_ext/symbol.rb b/activesupport/lib/active_support/core_ext/symbol.rb index cd928aae80..434d6abdbb 100644 --- a/activesupport/lib/active_support/core_ext/symbol.rb +++ b/activesupport/lib/active_support/core_ext/symbol.rb @@ -1,4 +1,11 @@ -class Symbol #:nodoc: +class Symbol + # Turns the symbol into a simpel proc, which is especially useful for enumerations. Examples: + # + # # The same as people.collect { |p| p.name } + # people.collect(&:name) + # + # # The same as people.select { |p| p.manager? }.collect { |p| p.salary } + # people.select(&:manager?).collect(&:salary) def to_proc Proc.new { |obj, *args| obj.send(self, *args) } end -- cgit v1.2.3