What are Ruby methods with blocks?

Can you explain what Ruby methods with blocks are?

Sure! In Ruby, methods can take blocks as arguments, allowing you to pass a chunk of code to be executed within the method.

How do I define a method that accepts a block?

You can define a method with a block by using the yield keyword inside the method. For example:

def my_method
  yield
end
my_method { puts 'Hello from the block!' }

What happens if I don't provide a block when calling the method?

If you call a method that uses yield without providing a block, Ruby will raise an error. You can check if a block is given using block_given?.

Can you give me an example of using multiple blocks?

Certainly! You can use multiple blocks by defining your method to accept them as parameters. Here's an example:

def my_method(&block1, &block2)
  block1.call
  block2.call
end

my_method(->{ puts 'Block 1' }, ->{ puts 'Block 2' })