Objective-C categories are a powerful feature that allows you to extend the functionality of existing classes without subclassing or modifying the original class. Categories provide a way to add methods to a class, even if you don't have access to the class's source code.
Here are the key points about Objective-C categories:
1. Extending Existing Classes
Categories enable you to add new methods to an existing class. This is useful when you want to extend the functionality of a class that you don't have control over, such as a class from a third-party library or a system framework.
2. Organizing Code
Categories help you organize your code by grouping related methods together. For example, you can create a category for a class that contains utility methods or convenience methods specific to your project.
3. Overriding Methods
Categories can override methods from the original class. If a category imple...
