What are blocks in Ruby?

Can you explain what blocks are in Ruby?

Sure! In Ruby, blocks are chunks of code that can accept input and be passed to methods. They are enclosed in either braces {} or do...end.

How do I use blocks with methods?

You can pass a block to a method by using the yield keyword inside the method. This allows the method to execute the block.

Can you give me an example of using a block?

Of course! Here's a simple example:

def greet
  yield('Hello')
end

greet { |greeting| puts greeting }

This will output 'Hello'.

What are the benefits of using blocks?

Blocks promote code reusability and can make your code cleaner and more expressive. They also allow for lazy evaluation.