What are exceptions in Ruby and how do I handle them?

What are exceptions in Ruby and how do I handle them?

Exceptions in Ruby are events that disrupt the normal flow of a program. You can handle them using begin-rescue blocks.

Can you give me an example of using begin-rescue?

Sure! Here's a simple example:

begin
  # code that might raise an exception
  result = 10 / 0
rescue ZeroDivisionError
  puts 'You cannot divide by zero!'
end

What other types of exceptions can I handle?

You can handle various exceptions like ArgumentError, TypeError, and IOError. Each has its own specific use case.

How can I create a custom exception in Ruby?

You can create a custom exception by subclassing the StandardError class. For example:

class MyCustomError < StandardError; end