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Ruby Ruby Modules Ruby Module Basics Write a Simple Module

Sean Flanagan
Sean Flanagan
33,235 Points
Posted by Sean Flanagan
Sean Flanagan
33,235 Points

What's wrong with the IRB?

Input:

module SimpleModule
  VERSION = 1.0
end

Console:

irb(main):012:0* load "./simple_module.rb                                                        
irb(main):013:0" load "./simple_module.rb                                                        
NameError: undefined local variable or method `simple_module' for main:Object                    
        from (irb):13                                                                            
        from /usr/local/bin/irb:11:in `<main>'                                                   
irb(main):014:0> load "./simple_module.rb                                                        
irb(main):015:0"                                                                                 
irb(main):016:0"                                                                                 
irb(main):017:0" SimpleModule                                                                    
irb(main):018:0"

Can anyone tell me why this is please? Thanks.

1 Answer

Nathan Williams
seal-mask
.a{fill-rule:evenodd;}techdegree
Nathan Williams
Python Web Development Techdegree Student 6,851 Points
Nathan Williams
.a{fill-rule:evenodd;}techdegree
Nathan Williams
Python Web Development Techdegree Student 6,851 Points

You need to quote-wrap your file-name, or ruby will treat it as a variable.

irb(main):002:0> load "./simple_module.rb"
=> true
irb(main):003:0> SimpleModule::VERSION
=> 1.0