What are some examples of dynamic typing in Ruby?

What are some examples of dynamic typing in Ruby?

Dynamic typing in Ruby means that you don't have to declare the type of a variable when you create it. For example, you can do this:

x = 10  # x is an Integer
x = 'Hello'  # now x is a String

Here, the variable x changes its type from Integer to String.

Can you show me more examples?

Sure! Here's another example:

def greet(name)
  "Hello, "+name
end

puts greet('Alice')  # Outputs: Hello, Alice
puts greet(123)  # Outputs: Hello, 123

In this case, the greet method can accept both a String and an Integer.

What are the advantages of dynamic typing?

Dynamic typing allows for more flexibility in your code, making it easier to write and modify. It can speed up development since you don't need to specify types explicitly. However, it can also lead to runtime errors if you're not careful.

Are there any downsides to dynamic typing?

Yes, one downside is that it can lead to harder-to-debug errors since type-related issues are only caught at runtime. Additionally, it may make the code less readable for others who might expect explicit type declarations.