What is the difference between blocks and procs in Ruby?

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

Sure! In Ruby, a block is a chunk of code that you can pass to methods, while a proc is an object that encapsulates a block.

How do I define a block and a proc?

A block is defined using either curly braces or do...end, while a proc is created using Proc.new or the proc method.

Can you give me an example of when to use a block versus a proc?

Absolutely! Use blocks for methods that yield to a block, like each, and procs when you need to pass around reusable code.

Are there any performance differences between using blocks and procs?

Yes, blocks are generally more efficient because they are not objects, while procs have some overhead since they are objects.