Class, Instance and Singleton methods
There are three types of methods in Ruby and I always get them confused. Here, for my future reference, is what I currently think they mean.
Class methods
Methods which can be called directly on a class.
Time.now
Monkey.find(:all)Instance methods
Methods which can be called on any instance of that class.
@widget.to_s
Time.now.to_f
Singleton methods
Methods which can be called only on a specific instance of that class.
chicken = Chicken.new
class << chicken
def hide
# ...
end
end
chicken.hide
