What are some common mistakes in Ruby regarding variable scope?
An example of an AI chatbot conversation about common mistakes in Ruby variable scope.
What are some common mistakes in Ruby regarding variable scope?
Common mistakes include misunderstanding local vs. instance variables, and not using 'self' correctly.
Can you explain the difference between local and instance variables?
Sure! Local variables are defined within a method and can't be accessed outside it, while instance variables are prefixed with '@' and can be accessed by instance methods.
What happens if I forget to use '@' for an instance variable?
If you forget to use '@', Ruby will treat it as a local variable, which may lead to unexpected behavior or errors.
How can I avoid these mistakes in my Ruby code?
You can avoid these mistakes by consistently using instance variables when needed and being mindful of variable scope.
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