Question

Can any one tell me? what does following means in ruby program:

obj = myClass.new
(Err("Error: Can't get myClass instance"); exit) if obj == nil

Thanks in advance

Answer 1

# create instance of a class with non-standard name. 
obj = myClass.new
# call function Err and exit if myClass.new returned nil
(Err("Error: Can't get myClass instance"); exit) if obj == nil

I find this code confusing. Under normal circumstances, new never returns nil. If it does in your app, then you have much more complicated code somewhere. This one is not your biggest problem 🙂