Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trial
Rachelle Wood
15,362 PointsIs the .superclass method eliminated for Ruby 2.2.3 ?
Is the .superclass method in Object deprecated for the most recent iteration of Ruby? It looks like it doesn't shot up in the list and I can't seem to use it in the recent version of irb (not the Workspace one but the one that comes with Ruby).
1 Answer
Seth Reece
32,867 PointsAccording to the docs it is not. I ran IO.superclass in irb and it returned Object just like it says.
Rachelle Wood
15,362 PointsHmm... I just tried it again. I did (in irb) string = String.new then string.superclass and I got the error message saying that "superclass is not a method for "Hello world!":String.
If I do String.superclass it returns Object. If I define two classes with one inheriting from the other, I get the right superclass. I guess you can only use superclass as a method on classes and not on instantiated variables. I guess that makes sense.
I learned somethink today :)
Abirbhav Goswami
15,450 PointsI guess it's a class method rather than an instance variable then. Good to know!
Rachelle Wood
15,362 PointsRachelle Wood
15,362 PointsHmm... I just did the following test in my version of irb:
object = Object.new
object.respond_to?(:superclass)
=> false
It looks like it has been removed.