diff options
Diffstat (limited to 'activesupport/lib/active_support/core_ext/symbol.rb')
| -rw-r--r-- | activesupport/lib/active_support/core_ext/symbol.rb | 9 |
1 files changed, 8 insertions, 1 deletions
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 |