CSharp-Coder

Learn C# nullable reference types to eliminate null reference exceptions for good. Practical examples, best practices, and pitfalls. Start writing safer C# today. If you have written C# for any length of time, you have met the most infamous runtime error in the .NET ecosystem: the dreaded System.NullReferenceException . Sir Tony Hoare, who introduced the null reference in 1965, famously called it his "billion-dollar mistake." The good news is that modern C# gives you a powerful tool to wipe out this class of bug at compile time. In this tutorial you will learn exactly how C# nullable reference types work, how to enable them, and how to use them to eliminate null reference exceptions for good. This guide is written for everyone: beginners searching for how to avoid null in C# , intermediate developers looking for nullable reference types best practices , and senior engineers who want to master advanced nullable annotation techniques. Every example below is runnable on ...