Frederick Cheung questions

Frederick Cheung answers

• How to get the method which is handling a method call
• Ruby Koans about message passing "send" block & arguments
• How to create an XML Http Request?
• Is it a good practice to resort to the send() in this situation?
• Accidental expression evaluation in ruby
• How to read Ruby global variable using internal C API?
• Prevent caching of a single js file
• Correct way to access proxy's owner in association extension
• CORS with Amazon S3 and Cloudfront
• Ruby class vs instance method confusion