We’ll use this .NET 8 console application project to work with the code examples shown in the subsequent sections of this article. Define an extension method in C# Extension methods are a ...

If the conditions are not satisfied, the execution of the method stops prematurely ... The following code example shows how you can use a guard clause in C# to prevent invalid input.

He shares examples from his time at Google ... addition is related to Extension types which in C# 13 will be expanded by providing additional methods, properties, and members to underlying types.