诗歌rails之 Symbol to Proc
- class Symbol
- # Turns the symbol into a simple 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 { |*args| args.shift.__send__(self, *args) }
- end
- end
莫愁前路无知己,天下无人不识君。