Super.index gives error

ruby-talk
1

Hello!
   I'm having a strange problem.

class Super

   def index
      puts "some code"
   end
end

class Base < Super

   def index
      super.index() # Says you super is nil! nil.index and an
error. What might be wrong?
   end
end

2

Hi:

Hello!
  I'm having a strange problem.

class Super

  def index
     puts "some code"
  end
end

class Base < Super

  def index
     super.index() # Says you super is nil! nil.index and an
error. What might be wrong?
  end
end

irb(main):001:0> class Super
irb(main):002:1> def index
irb(main):003:2> puts "some code"
irb(main):004:2> end
irb(main):005:1> end
=> nil
irb(main):006:0> class Sub < Super
irb(main):007:1> def index
irb(main):008:2> super
irb(main):009:2> end
irb(main):010:1> end
=> nil
irb(main):011:0> Sub.new.index
some code
=> nil
irb(main):012:0>

Technically, Super is also the `base' class, so I named it Sub. Just use
`super' -- super calls the method of the same name in the superclass.

HTH
Arlen

···

On Feb 19, 2008 9:34 PM, MohsinHijazee <mohsinhijazee@gmail.com> wrote:

3

Thank you very much! The problem is solved

···

On Feb 19, 3:38 pm, Arlen Cuss <cel...@sairyx.org> wrote:

[Note: parts of this message were removed to make it a legal post.]

Hi:

On Feb 19, 2008 9:34 PM, MohsinHijazee <mohsinhija...@gmail.com> wrote:

> Hello!
> I'm having a strange problem.

> class Super

> def index
> puts "some code"
> end
> end

> class Base < Super

> def index
> super.index() # Says you super is nil! nil.index and an
> error. What might be wrong?
> end
> end

irb(main):001:0> class Super
irb(main):002:1> def index
irb(main):003:2> puts "some code"
irb(main):004:2> end
irb(main):005:1> end
=> nil
irb(main):006:0> class Sub < Super
irb(main):007:1> def index
irb(main):008:2> super
irb(main):009:2> end
irb(main):010:1> end
=> nil
irb(main):011:0> Sub.new.index
some code
=> nil
irb(main):012:0>

Technically, Super is also the `base' class, so I named it Sub. Just use
`super' -- super calls the method of the same name in the superclass.

HTH
Arlen