What are some practical use cases for Procs in Ruby?

What are some practical use cases for Procs in Ruby?

Procs in Ruby are great for encapsulating blocks of code that can be reused. For example, you can use them for callbacks, event handling, or even as arguments to methods.

Can you give me an example of using a Proc as a callback?

Sure! You can define a Proc and pass it to a method that executes it later. For instance, you could create a Proc that prints a message and pass it to a method that calls it after a certain event.

What about using Procs for sorting?

Absolutely! You can use a Proc to define custom sorting logic. For example, you can create a Proc that sorts an array of hashes based on a specific key.

Are there any performance considerations when using Procs?

Yes, while Procs are powerful, they can introduce overhead. It's important to consider their impact on performance, especially in tight loops or high-frequency calls.