How to share variables across my .rb files?
I have few .rb files and I want to use the same variables in all of them. Let's say variable test_variable = "test" would be accessible from all my .rb files. How can I do that?
I created settings.rb file with test_variable = "test" then used require 'settings' in other .rb file but it didn't work. I would like to use require not load.
I tried to make the variable global adding prefix $ in front of the variable name but I am still getting undefined local variable or method 'test_variable' for main:Object (NameError)
Constants (which include modules and classes) are added to the shared global environment:
phrogz$ cat constants1.rb TEST_VARIABLE = "test" phrogz$ cat constants2.rb require_relative 'constants1' p TEST_VARIABLE phrogz$ ruby constants2.rb "test"
Instance variables declared in main are all part of the same main:
phrogz$ cat instance1.rb @test_variable = "test" phrogz$ cat instance2.rb require_relative 'instance1' p @test_variable phrogz$ ruby instance2.rb "test"
Global variables are also all part of the same environment (tested in 1.8.6, 1.8.7, and 1.9.2):
phrogz$ cat global1.rb $test_variable = "test" phrogz$ cat global2.rb require_relative 'global1' p $test_variable, RUBY_DESCRIPTION phrogz$ ruby global2.rb "test" "ruby 1.9.2p180 (2011-02-18 revision 30909) [x86_64-darwin10.7.0]"