What are some use cases for Ruby blocks?

What are some use cases for Ruby blocks?

Ruby blocks are used for various purposes, such as iterating over collections, defining custom behavior for methods, and creating closures.

Can you give me an example of using a block with an array?

Sure! You can use a block with the each method to iterate over an array. For example: array.each { |item| puts item }.

What about using blocks with methods?

You can pass a block to a method to customize its behavior. For instance, you can define a method that takes a block and calls it within its body.

Are there any performance benefits to using blocks?

Yes, using blocks can lead to cleaner code and can improve performance by avoiding the creation of additional objects.