What are the different types of parameters in Ruby methods?

What are the different types of parameters in Ruby methods?

In Ruby, there are several types of parameters: required, optional, and keyword parameters. Required parameters must be provided when calling the method, while optional parameters have default values. Keyword parameters allow you to pass arguments in a more readable way.

Can you give me an example of each type?

Sure! Here's an example:

1. Required parameter: def greet(name)
2. Optional parameter: def greet(name, greeting = 'Hello')
3. Keyword parameter: def greet(name:, greeting: 'Hello').

What happens if I don't provide a required parameter?

If you don't provide a required parameter, Ruby will raise an ArgumentError, indicating that the method is missing a required argument.

How do I handle optional parameters in a method?

You can set a default value for optional parameters in the method definition. If the caller does not provide a value, the default will be used.