Pro EP 24 : Extension Methods in C#

An extension method is a special kind of static method that allows you to “add” methods to an existing type without modifying the type itself.

𝐋𝐞𝐭 𝐦𝐞 𝐫𝐞𝐦𝐢𝐧𝐝 𝐲𝐨𝐮 : You already know about extension method let me remind you, you might have used method ToCharArray method that is extension Method for string

𝐁𝐞𝐧𝐞𝐟𝐢𝐭𝐬 𝐨𝐟 𝐮𝐬𝐢𝐧𝐠 𝐞𝐱𝐭𝐞𝐧𝐬𝐢𝐨𝐧 𝐦𝐞𝐭𝐡𝐨𝐝𝐬
1. Extension methods allow you to reuse code across multiple types without having to create a new subclass or interface for each type.

2. They reduce code duplication and improve the maintainability of your code.

3. They can make your code more readable by allowing you to define methods that are directly related to the type they are extending

4. These methods are used extensively in the LINQ (Language Integrated Query) library.

5. They are very simple to develop just a static method of static class and in parameter you add this keyword.

𝐇𝐨𝐰 𝐭𝐨 𝐜𝐫𝐞𝐚𝐭𝐞 𝐄𝐱𝐭𝐞𝐧𝐬𝐢𝐨𝐧 𝐌𝐞𝐭𝐡𝐨𝐝?
Extension methods are defined as static methods in a static class, and use the “this” keyword to specify the type they are extending.

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