From: Phrogz <phrogz@...>
Date: 2008-02-06T09:09:56+09:00
Subject: Re: how can I use variable as a attribute name

On Feb 5, 2:23 pm, Darin Duphorn <dduph...@redbrickhealth.com> wrote:
> I'm unable to use the attribute name (variable) to verify the button
> with the attribute value exists.
>
> I've tried the following:
>
> #Set Variables
> $attribute_nm = "type"
> $attribute_val = "submit"
>
> #Verify Button Exists
> if $ie.button(:$attribute_nm,$attribute_val).exists?
>
> #Verify Button Exists
> if $ie.button(:+$attribute_nm,$attribute_val).exists?
>
> #Verify Button Exists
> if $ie.button($attribute_nm,$attribute_val).exists?

Wow, that's a lot of global variables. If it's a symbol you want:
  irb(main):001:0> f = "foo"
  => "foo"
  irb(main):002:0> p f.to_sym, f.intern, :"#{f}"
  :foo
  :foo
  :foo

If it's a method call you're trying to do based on the variable, see
the Object#send method:

C:\>ri Object#send
------------------------------------------------------------
Object#send
     obj.send(symbol [, args...])        => obj
     obj.__send__(symbol [, args...])    => obj
------------------------------------------------------------------------
     Invokes the method identified by _symbol_, passing it any
arguments
     specified. You can use +__send__+ if the name +send+ clashes with
     an existing method in _obj_.

        class Klass
          def hello(*args)
            "Hello " + args.join(' ')
          end
        end
        k = Klass.new
        k.send :hello, "gentle", "readers"   #=> "Hello gentle
readers"