Iwan van Ee

How can you add a guard clause against null values in C#? A standard solution in .NET is throwing argument exceptions. Write a null check, and if it's true, throw an exception. However, there's a concise way to write this using a helper method: - ArugmentNullException.ThrowIfNull. But what is a guard clause? A guard clause is a conditional check for invalid inputs that prevents a method from completing. Guard clauses help you implement the fail-fast principle. On the downside, too many guard clauses make your code verbose. Good use cases for guard clauses: - Input validation - Early exit/return - Precondition checks - Null checks without nesting If you enjoyed this, you will love The .NET weekly newsletter. More than 45,000+ engineers already read it. Subscribe here: milanjovanovic.tech/?utm_sou… Do you use any library for writing Guard Clauses?