Understanding [ClassOne, ClassTwo].each(&:my_method) [duplicate]

by

This relies upon a Ruby 1.9 extension that can be done in 1.8 by including the following:

class Symbol
    def to_proc
      proc { |obj, *args| obj.send(self, *args) }
    end
end

I believe Rails defines this in ActiveSupport.

More Related Contents:

  1. Regex for reverse match a string
  2. How to write a switch statement in Ruby
  3. Ruby, Difference between exec, system and %x() or Backticks
  4. What is the difference or value of these block coding styles in Ruby?
  5. How to understand symbols in Ruby
  6. Look up all descendants of a class in Ruby
  7. What does &. (ampersand dot) mean in Ruby?
  8. “for” vs “each” in Ruby
  9. Mixing keyword with regular arguments in Ruby?
  10. String concatenation vs. interpolation in Ruby
  11. ActionController::UnknownFormat
  12. Sort hash by key, return hash in Ruby
  13. How to merge Ruby hashes
  14. I don’t understand ruby local scope
  15. Weird backslash substitution in Ruby
  16. Strange \n in base64 encoded string in Ruby
  17. Printing the source code of a Ruby block
  18. Double Pipe Symbols in Ruby Variable Assignment? [duplicate]
  19. Why does Ruby’s ‘gets’ includes the closing newline?
  20. Error to install Nokogiri on OSX 10.9 Maverick?
  21. How do I avoid trailing empty items being removed when splitting strings?
  22. How do I test a function with gets.chomp in it?
  23. Why does “compass watch” say it cannot load sass/script/node (LoadError)?
  24. When to use `require`, `load` or `autoload` in Ruby?
  25. Natural Language Processing in Ruby [closed]
  26. How can I get the absolute URL when extracting links using Nokogiri?
  27. How to determine if a character is a Chinese character
  28. How to turn a string into a method call? [duplicate]
  29. What is the behavior when using both positional and keyword arguments in Ruby?
  30. Should I use alias or alias_method?

Leave a Comment