What are procs in Ruby and can you give me some examples?

What are procs in Ruby and can you give me some examples?

Procs in Ruby are blocks of code that can be stored in a variable and executed. They are similar to lambdas but have some differences.

Can you show me a simple example of how to create and use a proc?

Sure! Here's a simple example:

my_proc = Proc.new { |x| x * 2 }
puts my_proc.call(5)  # Output: 10

What’s the difference between a proc and a lambda?

The main differences are in how they handle return statements and arguments. A proc can take fewer arguments and returns from the enclosing method, while a lambda checks the number of arguments and returns from itself.

Can you provide an example of using a lambda?

Absolutely! Here's an example of a lambda:

my_lambda = ->(x) { x * 2 }
puts my_lambda.call(5)  # Output: 10