Ruby Global Variables

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ruby

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answers:

+1 Q:

Ruby Global Variables

In Ruby is there any method that lists all the global variables available at the point of inspection like $GLOBALS in php?

+1 A:

Yes. There is Kernel#global_variables.

puts global_variables

Since it's a method from Kernel, you can call it without having to mention the class name.

Geo 2010-03-01 16:38:54

@Geo: Thanks for the feedback. Is there any shortcut like $:, $. or something built-into ruby?

satynos 2010-03-01 16:47:21

Ruby has some special variables, like in the way Perl does. See http://www.zenspider.com/Languages/Ruby/QuickRef.html , under the section `Predefined variables`.

Geo 2010-03-01 16:49:12

@Geo: I did see the predefined variables in Ruby, but if I am not wrong, there is no predefined variable that acts as a shortcut to the global_variables method.

satynos 2010-03-01 16:55:23

I don't think there is such a thing in Ruby.

Geo 2010-03-01 17:48:22

I cannot find such a thing in the MRI 1.8.7 source

Wayne Conrad 2010-03-01 20:59:52