Can you explain extension methods and write one for Int data type

Question

Accepted Answer

Extension methods allow adding new methods to existing types without modifying the original type.

Extension methods are defined as static methods in a static class.
The first parameter of an extension method specifies the type being extended, preceded by the 'this' keyword.
Extension methods can be called on instances of the extended type as if they were instance methods.
Extension methods can be used to add functionality to built-in types or third-party types.
Here's an example of an extension method for the Int data type:
public static class IntExtensions {
public static bool IsEven(this int number) {
return number % 2 == 0;
}
}
Usage: int num = 10;
bool isEven = num.IsEven(); // true

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