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Revision: 2477
at February 26, 2007 19:55 by wackimonki
Initial Code 
if session[:counter].nil?
  # code here
end
Initial URL 

                                

                                                            

                                    

                                        

                                        Initial Description
                                        

                                    

                                    
The code tests if session[:counter] exists. If you leave out the all important '?', it will fail with an error.

                                

                                                            

                                    

                                        

                                        Initial Title
                                        

                                    

                                    
Testing If Variable is Empty (nil)

                                

                                                            

                                    

                                        

                                        Initial Tags
                                        

                                    

                                    
rails

                                

                                                            

                                    

                                        

                                        Initial Language
                                        

                                    

                                    
Ruby