In Ruby, the typical way to define a class is using the class keyword:
class Foo
# …
end
The class keyword, however, is effectively just syntax sugar for the Class constructor:
Foo = Class.new
# …
end
Using Class.new is occasionally preferable, e.g. when you want an anonymous class which isn’t assigned to a constant:
@myclass = Class.new […]
I’ve been pretty unsatisfied with the default WordPress commenting system for a number of reasons. And I’ve received several complaints about the way OpenID was being handled in comments. I’ve switched the comments over to being managed by Disqus. Hopefully this will address the issues and be more convenient for all concerned.
After 5-6+ years of working with Ruby, I am still periodically reminded of features I’d forgotten about. Today it was the fact that you can override the backtick operator:
>> def `(cmd)
>> puts "Do you really want to #{cmd}?"
>> end
=> nil
>> `rm -rf *`
Do you really want to rm -rf *?
=> […]
It’s an oft-stated fact that most disasters result not from a single point of failure but from a combination of failures reinforcing each other. I wouldn’t term the problem I ran into last Friday a disaster, but it certainly cost me several hours of time trying to find a workaround.
Culprit #1: Rails
Rails’ ActiveSupport added […]