32 questions for “Reflection”

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C# Attributes & Reflection 11

Information Technology

32 questions in 5 technologies

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1What is reflection in C#, and what are its most common practical uses and performance trade-offs? C# › Attributes & ReflectionC#Attributes & ReflectionIntermediate
2What is reflection, and what basic information can you retrieve from a Type object at runtime? C# › Attributes & ReflectionC#Attributes & ReflectionBeginner
3How do you use reflection to read a custom attribute's values off a property at runtime? C# › Attributes & ReflectionC#Attributes & ReflectionIntermediate
4How do you dynamically create an instance of a type and invoke a method on it using reflection, when the type isn't known at compile time? C# › Attributes & ReflectionC#Attributes & ReflectionIntermediate
5How does the .NET dependency injection container and ASP.NET Core's model binding use reflection and attributes together under the hood? C# › Attributes & ReflectionC#Attributes & ReflectionAdvanced
6How would you write a simple reflection-based object mapper that copies matching property values from one object to another of a different type? C# › Attributes & ReflectionC#Attributes & ReflectionAdvanced
7How do you use reflection to discover all types in an assembly that implement a specific interface, useful for plugin discovery? C# › Attributes & ReflectionC#Attributes & ReflectionAdvanced
8Why is reflection generally slower than direct code, and what techniques (like caching or compiled expressions) mitigate this cost? C# › Attributes & ReflectionC#Attributes & ReflectionAdvanced
9How would you use System.Reflection.Emit or source generators as faster, more modern alternatives to runtime reflection for code generation scenarios? C# › Attributes & ReflectionC#Attributes & ReflectionAdvanced
10What is the difference between compile-time annotation processing (via javax.annotation.processing.Processor) and runtime reflection-based annotation reading? Java › AnnotationsJavaAnnotationsIntermediate
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