Basics
C# Best Practices
C# Coding Best Practices
C# best practices include null safety, async patterns.
Understanding Null Safety in C#
Null safety is a crucial practice in C# that helps prevent null reference exceptions, which are a common source of runtime errors. By ensuring that variables cannot be null unless explicitly allowed, developers can write more robust and error-free code. C# provides several features to promote null safety, including nullable reference types and the use of the null keyword.
In this example, a nullable string is declared using the ? operator. The code then safely checks if the string is not null before accessing its properties, preventing a potential null reference exception.
Implementing Async Patterns
Async programming in C# allows for non-blocking operations, improving application performance and responsiveness. The async and await keywords are central to implementing asynchronous methods. They enable methods to run asynchronously without blocking the calling thread.
In the example above, the FetchDataAsync method retrieves data from a specified URL asynchronously. The await keyword is used to pause the method execution until the GetAsync task is complete, ensuring that the application remains responsive.
Combining Null Safety with Async Patterns
When using async patterns, it's important to maintain null safety to avoid runtime errors. Combining these two practices ensures that asynchronous code is not only efficient but also robust. Proper error handling and null checks should be implemented in asynchronous methods.
The modified version of FetchDataSafelyAsync includes null checks and exception handling, ensuring that null or invalid inputs are gracefully handled and any errors during the fetch operation are logged, maintaining both efficiency and safety.
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