What are lambdas and procs in Ruby?

Can you explain the difference between lambdas and procs in Ruby?

Sure! Both lambdas and procs are used to create blocks of code that can be stored in variables, but they have some key differences.

What are those key differences?

Lambdas check the number of arguments passed, while procs do not. Also, lambdas return control to the calling method, whereas procs return from the method they are defined in.

Can you give me an example of each?

Absolutely! Here's a lambda example: my_lambda = ->(x) { x * 2 }. And a proc example: my_proc = Proc.new { |x| x * 2 }.

Thanks! How do I use them in a method?

You can pass them as arguments to methods. For example, def my_method(&block), where block can be a lambda or proc.