What is the raise and rescue mechanism in Ruby?
An example of an AI chatbot conversation about error handling in Ruby using raise and rescue.
Can you explain the raise and rescue mechanism in Ruby?
Sure! In Ruby, 'raise' is used to trigger an exception, while 'rescue' is used to handle that exception.
Can you give me an example of how to use raise and rescue?
Of course! Here's a simple example:
begin
raise 'An error occurred'
rescue => e
puts e.message
end
What happens if I don't use rescue after raise?
If you don't use 'rescue', the program will terminate and display the error message.
Are there different types of exceptions I can raise?
Yes, Ruby has built-in exceptions like StandardError, RuntimeError, and you can also create custom exceptions.
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